• These are all in a class of troffer called “volumetric”.  Volumetric lights are 3 dimensioned: they extend up into the ceiling grid.  This breaks up the monotony of the flat ceiling plane making the ceiling more interesting to look at.
  

  Chanticleer Examination Room with Cree 2×4 Troffers

• The curved and slanted surfaces of the volumetric troffers are engineered to deliver the light into the room more effectively (maximizing the available light) while also distributing the light more uniformly: minimizing glare, shadows and harsh edges.

Main Clinic Reduction of costs and improvements in efficiency are two key goals with facilities at the Palo Alto Medical Foundation, a member of the Sutter Health network.  With health care needs growing and the consequent need to enhance existing facilities and build new ones, PAMF is paying specific attention to the implementation of LED lighting in their new and upgraded facilities.

Main Clinic Corridor with Phillips EvoKit 2′x4′ and 2′x2′ Troffers

Main Clinic Administrative Office with Phillips EvoKit 2′x4′ and 2′x2′ Troffers

•  EvoKit 2×4-P36L-33W-835-5-Mk10-7-G2 #929000716313
•  EvoKit 2×4-P42L-42W-835-5-Mk10-7-G2 #929000714713
•  EvoKit 2×4-P52L-53W-835-Mk10-5-G2 #929000715713
•  EvoKit 2×2-P32L-34W-838-5-Mk10-7-G2 #929007714113
•  EvoKit 2×2-P23L-25W-838-5-Mk10-7-G2 #929000716913

The EvoKit troffers are installed in the hallways, waiting rooms, admittance desks and the administrative areas.  The lumens (amount of light that is emitted) and watts of electricity used are identified in the description. For example P36L is 3600 lumens, and 33W is the amount of electrical draw that the troffer requires.  This results in a luminaire that delivers roughly 100 lumens /watt, a good number and useful reference metric when comparing troffer efficacy. Finelite High Performance Recessed Luminaire

Finelite Troffer in Main Clinic Procedure Room

• HPR-A-2×4-DCO-VHO-3500K-96-120-XX-INV-96LG

This high performance 6085 lumen, 3500K color temp, CRI-87, R9 – 32 luminaire is used in the procedure rooms.  These attributes provide bright lighting with good color rendering of skin colors and fluids such as blood which are all useful in diagnosis and treatment.

2911 Chanticleer Office

PAMF is in the final stages of a remodel of their office located at 2911 Chanticleer, across from Sutter Maternity and Surgery Center.  Sutter Health Facility and Property Services collaborated with PAMF, Slatter Construction (general contractor) and sub-contractor Hope Electric to introduce LED lighting into the second phase of the remodel project. PAMF produced photometric drawings of the space at Chanticleer, which showed lighting levels at 30″ AFF (above finished floor) in foot candles, for Cree LED fixtures and T-8 fluorescent fixtures.  They also took field measurements under the existing fluorescent fixtures to make sure the manufacturer’s published data and drawings were reasonably accurate.  Based on the photometric drawings and their own guidelines, the LED fixture quantities and locations will match the approved lighting plan.  The fixture types that are installed are:

Chanticleer Procedure Room with Cree Troffers

Chanticleer Open Space with Cree Troffers and Skylight (above door)

- Corridors, open space work areas, waiting area: CR22, 2′x2′ troffers, 2000 lumens each – Individual offices that have only one 2′x2′ troffers: CR22, 3200 lumens each These fixture selections provide average lighting levels that most closely match the recommended levels for the various spaces. All fixtures have a color temperature of 4000K — that is the closest available match to the 4100K fluorescent tubes used in Phase 1. All fixtures have step-dimming which allows the light level to be manually reduced by 50%, a Title 24 code requirement.

Occupancy Sensor

Chanticleer Office with Cree 2×2 Troffers

Each office and procedure room has an occupancy sensor to turn the lights on and off. The designated emergency lights have battery backup which will provide 1400 lumens during power outages.

LED Materials Used in the Retrofit: Cree

•  (35) CR24 50L 40K_S – exam and procedure rooms
• (30) CR22 20L 40K_S corridors, common areas, open work spaces
•  (12) CR22 20L 40K_S EB14 – same as above with battery backup for emergency egress lighting
•  (4) CR22 32L 40K_S – slightly higher light output 2×2′s for those offices that have only one fixture

Electricians

2911 Chanticleer Electrician – John Hope Electric – (831)458-0805 www.johnhopeelectric.com 427 – B Swift Street, Santa Cruz, Ca. 95060

2025 Soquel Electrician – Rosendin Electric – (408) 286-2800 www.rosendin.com 880 Mabury Road, San Jose, Ca. 95133

The post PAMF Santa Cruz Carries out Major LED Lighting Retrofits appeared first on Santa Cruz LED Resource Guide.

King’s Plaza shopping center on the corner of 41st Avenue and Capitola road did that with their recent conversion to LED lighting.

The lots eighteen 250 Watt (HPS) High Pressure Sodium (the yellowish street and area lights commonly seen) lights were replaced with 150 W LED lights. This saves 1,800 Watts or 1.8kW/ hour of operation for the lot.   The U.S. Energy Information Agency calculations each kWh of electricity saved keeps between 1.22 and 2.19 lbs of CO2 from being released.  For an average 12 hours of operation the lot is saving 21.6kW of electricity and approximately 26 lbs of CO2 with this conversion.

Church street Santa Cruz,Ca

The lights are from RAB lighting.  The most notable thing about the lights are that they do not have the array of LEDs typically seen on LED roadway and area luminaires. Nor do they have the presence detection sensor seen on other lights like the Church street lights or the photocell seen on the top of other outdoor lights. These lights are all controlled by a timer.

In this design the LEDs are the yellow areas tucked up in the back of the light. We’ve seen this style of light in other areas along 41st Avenue. This style works by collecting and reflecting the light rather than the direct illumination in the array style light.

The RAB light model is ALED3T150  (These are some of the specifications used to compare them to other area lights)

• Specs:  -5000K color temperature – tends toward whiter light.  This was discussed in earlier posts.
• CRI 65
• Dark Sky Compliant     
  
• IESNA – TM-15-11 BUG rating B1-G2-U0
• Mounted on 35 foot poles
• Type III light distribution as defined by IESNA.  The type III light distribution throws the light wide and deep as seen in the top photo.
• 12,526 lumens (the total amount of light)
• 80.8 lm/W (lumens per watt) which is the efficacy of the light or how effectively it converts electricity (W) into light (lm) lumens.

The Color Rendering Index of 65 works well enough for a parking lot.  In this photo taken with only the parking lot lighting the colors are well rendered enough to discriminate between different colored cars. Note the vertical lighting ability to clearly illuminate the license plates.

BUG stands for Backlight, Uplight and Glare and the rating numbers assign a ranking to each attribute from 0-5 with 0 being the best or lowest amount of light emitted in that attribute as these are areas in which light is unwanted.

Rebates are available from PG&E for these lights. The rebate for replacing HID exterior area lights with 150-192W LED lighting in rebate code LT001 is $80/ light.

Map

Electrician – Triad Electric Inc. 1438 Chanticleer Ave, Santa Cruz, Ca. 95062 Ph. 831-462-1085

The post Capitola’s King’s Plaza Shopping Center Goes LED appeared first on Santa Cruz LED Resource Guide.

Kings Plaza

Two parking lots along 41st Avenue adopted LED lighting within the past two months bringing the total of LED parking lot lights to 34 out of a total of approximately 550 lights.  This brings the penetration to 6.1%.  The number of LED lights slightly more than doubled since last year.  The lights all look good, are using less electricity, and are costing the owners less to operate.

This is one of the 18 lights installed at the Kings Plaza shopping center on the corner of 41st Avenue and Capitola road.  A more detailed write up of the Kings Plaza lights will be posted on this site soon.

Below is one of the 3 lights installed at the Coast service station at 41st Avenue.

Coast Gas

Several organizations offer assistance in understanding LED Parking Lot specifications and deployment.  The U.S. Department of Energy with the Better Building Alliance at www4.eere.energy.gov has specifications, payback calculators, incentives, demonstration results and links to other helpful sites including the CALiPER Snapshot on Outdoor Area Lighting.   In addition to those practical tools the lighting vendors are bringing out new offerings giving the users a lot of good choices. LED parking lot lights from at least six different vendors are now installed throughout Santa Cruz county.  The Kings Plaza write up is a description of how one vendors lights are deployed.

The post July, 2014 Parking Lot Adoption Rate Update – 41st Avenue Capitola, California appeared first on Santa Cruz LED Resource Guide.

Vasquez evaluated LED High Bay fixtures ability to improve the light distribution, dimming, color and reliability over his two previous generations of lights; High Pressure Sodium and fluorescent.

His application was challenging: the bays are cold, the ceilings are about 36 feet high, the light has to allow the forklift operators to read the labels vertically, the occupancy sensors have to be able to respond to forklift speeds.  All this while remaining energy efficient, reliable and cost effective.

Upon completion of the evaluation he chose ILE-3-13 Intelligent LED High Bay fixtures from Digital Lumens.

LEDs are efficient at low temperatures  and ILE -3-13 is rated to operate from -40F to +122F allowing it to meet the cold requirements.

The light contains an integrated occupancy sensor. The lights are dimmed to 10% when the bays are unoccupied and come on two at a time when occupied, saving additional electricity. See photo above for 10% dimmed lights. Note the uniformity of light along the height of the shelves  Vasquez said the response time of the occupancy sensors meets the requirements of the forklift drivers.

The ability to provide the proper beam shape and lighting for the aisles is done with three independently amiable and fully dimmable light bars within the light.

The 5000K ILE-3-13 puts out 13,000 lumens at 138 Watts.

Monitoring and controlling the lights is done wirelessly through the integrated Zigbee radio.

Having the occupancy sensor and Zigbee radio integrated into the light fixture was a plus in choosing this light.

The light is uniform along the floor. The further out lights are dimmed to 10%.  The brightness, beam spread and color temperature allows easy reading at the bottom of the shelves.

The 108 lights have been installed for almost a year and Vasquez is satisfied with his decision to install LED lights and wireless controls from Digital Lumens.

The post Dreisbach Moss Landing Cold Storage Warehouse uses LED Lighting with Wireless Controls appeared first on Santa Cruz LED Resource Guide.

The stainless steel fixtures and cable with the white light LEDs are successful in blending the bar and dining area with the equipment and lighting in the brewery section allowing customers to be part of the brewing process.

Mounting the lights on a cable system made functional sense in a building with 20-30′ high ceilings. It eliminated using either hanging the lights on 20′+ long wires or using bright warehouse style lighting, neither of which would have created as pleasant of a lighting experience.  In addition the mesh of steel cables helps pull the room together giving it a sense of connected strength.

The class 2 cable lighting system is from Prima Lighting www.primalighting.com.  The low voltage (12V) in this case, drivers are remotely mounted. This allows the cables which distribute the safe low voltage to the LED lights to be free from anything but the lights.

The lights are Philips Enduraled MR16, 10W, 3000K dimmable LEDs. Each light emits 538 lumens.  The bar and dining area has 60 lights for a total of 600W at full brightness.  Being able to dim the lights in restaurants helps set the mood.  There are several dimming zones here and the dimming is smooth, flicker free and deep.

Having the capability to spread the 60, 10W LEDs throughout the room along the cable allows each group of people to have their own light, creating personal spaces but  having the same lights throughout creates a sense of camaraderie.

Design: Derek Van Alstine  www.vanalstine.com

Electrical: Phil Allegri  www.allegrielectric.com

The post Discretion Brewing in Soquel Glows with LED Lighting appeared first on Santa Cruz LED Resource Guide.

The conversion to LED lighting included retrofitting the enclosed refrigerated cases and changing out 150+ overhead lamps to LED PAR 38′s. The improvements were part of a larger energy savings program that Energy Smart Grocer worked with Rex on.  Energy Smart Grocer is a third party funded by PG&E, in this area, to help grocers reduce their operating costs through energy-efficient upgrades.

With six months of operating experience with the new LED lights Rex is satisfied with the results. The store and merchandise are nicely lit, the lamps have not needed replacing and he estimates they have reduced the stores electricity consumption by about 12%.

The overhead LED lamps light the main aisle that runs around the perimeter of the store.  The variety of merchandise being lit by these lamps ranges from baked goods, to packaged goods, to produce.  The amount and quality of light shows the merchandise off very well while enabling shoppers to move easily through the store.

The lighting in the center aisles of the store, while not LED, is done with crisp, efficient fluorescent T5 linear bulbs.  The lights along the perimeter work areas such as the deli and meat counter are energy efficient CFL.

Visit the store to see it in person…

View Larger Map

The post New Leaf Community Market Westside, Santa Cruz, Ca. Improves Store with LED Lighting appeared first on Santa Cruz LED Resource Guide.

Many Hands Gallery at 510 Bay Avenue in Capitola shows a variety of artwork by local artists ranging from paintings, to pottery, to sculpture to jewelry.  The store had halogen lights in the past but the store owner wanted to reduce her lighting costs, reduce the number of times she had to change failed lamps and reduce her air conditioning load so she converted to CFL PAR38 lamps throughout most of the store.  A few halogens remain in the track lights and display cases. While the cost savings from converting to CFLs were realized, the lamps did not always bring out the best features in the displayed artwork or the store. The large emitting area of CFLs , while good at emitting a lot of light are limited in their ability to put focused light on an object.  Halogen and LED lamps however are very good at putting focused light where you need it.

She began experimenting with LED Par 38s in her track lights.  Because of the cost ~$75 each at the time, converting the whole store was unrealistic.  Because PAR38 LED lamps were screw-in compatible with her CFL track lighting experimenting with a handful of the new lights enabled here to make noticeable improvements in her store and on the displays without converting the whole store. [ Note: PAR38 LED bulbs will not be screw-in compatible with track lighting that has dimming.  LED lamps and luminaires require dimmers that are matched to the light in order to work well.]

Here she effectively uses LED lamps to subtly balance the outside light allowing the displayed objects to be seen against the strong afternoon sun coming through the windows

In addition to the ability to focus and throw the light better than CFLs, LEDs can be better at accurately rendering the colors – making them look the way they would look under incandescent lights or natural daylight.  The Many Hands Gallery has large, unobstructed windows allowing a lot of daylight into the gallery so the pieces show well because of this.  The addition of focused, broad spectrum LED light onto this painting right inside the front door however helps bring out the richness of the colors and the range of light with no glare, allowing the piece to be shown to its full potential.

Here the PAR38 LED light is used to highlight the paintings that are around a corner.  Even though it is a bright afternoon and the gallery is well lit throughout, this area seems darker by comparison.  The addition of focused light opens up the space, drawing customers to the area while showing off the paintings to full effect.

Lesson Learned:

Experimenting with a handful of lamps resulted in several well placed LED PAR38 lights that significantly improved the quality of light in the store and the artwork being displayed.  The owner is happier with the LED lamps and said that customers have commented, without knowing why, that the gallery looked lighter and better.  All this while reaping the benefits of lower electricity bills and longer lived lamps.

So How Do You Start?

While there are a ton of new LED lamps on the market there are three agencies that are doing a good job of helping you make the best choices. These organizations want you to be successful in implementing LED lighting so do take advantage of their expertise.

1) Lighting Facts at www.lightingfacts.com tests and labels LED lamps and luminaires.  Buying product with this label helps you get what you need.

A few new metrics to learn when considering LEDs are 1) Lumens – this is a measure of how much light is coming out of the lamp or luminaire 2) CRI – this is a measure of the lights ability to accurately replicate the range of colors being illuminated, using natural or incandescent light as the standard.  100 is the best. 3) CCT – this is a number that indicates how warm – reddish or cool – bluish the color coming from the light is.

A good starting point may be to get a range of CCT and CRI lamps and try them in different areas of your place and see which ones perform best in which applications.  These lights will last for years so by doing a thorough job of testing you will be rewarded with years of good lighting.

Once you have decided on the supplier, CCT, light output and CRI – file that information and use if for your subsequent purchases.  Mixing lights with different values in the same area will probably result in you being unsatisfied with the results.

2) Energy Star www.energystar.gov/productfinder

This site has a list of all the Energy Star certified lights.  For commercial applications an Energy Star certification is recommended.  This site also explains about possible rebates.  Energy Star or DLC certifications are always required to qualify for rebates.

3) Design Lights Consortium DLC www.designlights.org

This consortium keeps an updated Qualified Products List of all LED – also known as SSL (Solid State Lighting) products.

View Larger Map

The post Many Hands Gallery in Capitola Adopting LED Lighting appeared first on Santa Cruz LED Resource Guide.

The dominant lights in jewelry stores today are halogen lamps in a variety of sizes but typically the MR16 (metallized reflector), a 2 inch diameter light and the PAR 38 (parabolic reflector), a 41/2 inch diameter light are used.This family of lights has the properties that bring out the best qualities in a wide array of jewelry products.  The broad color spectrum emitted and high color rendering index (CRI) bring out the best colors in the precious metals and gems.  The reflector and strong center beam intensity, the properties that make the lights twinkle and give these lights the punch to get from the light to the display, make the metals and gems sparkle and gleam without creating undesirable glare. High quality light also brings out the richness of the wood and metal in the store.

Dell Williams has installed LED PAR38 track lighting over the display in the front entry of the store and down the center of the store as recessed, ambient lights.  Several LED PAR38 lamps are now rated for recessed cans.

At a conservative comparison of 100Watts required by a halogen PAR38 and 25Watts required by an LED PAR38 each installed light reduces the electricity required by 75% while providing high quality lighting.

The electrician is Matt Steinmetz,  matt@santacruzelectric.com.

View Larger Map

The post Dell Williams Jewelers at 1320 Pacific Avenue in Santa Cruz, Ca is Using LED Lights appeared first on Santa Cruz LED Resource Guide.

Because of the similarity of technology and proximity to street lights, parking lot lighting seems like a natural next step.

The U.S. Department of Energy, April 2013 report -Adoption of Light-Emitting Diodes in Common Lighting Applications estimatedthat in 2012 there were 44 million street light fixtures in the US and that 1 million had been converted to LEDs. This is a 2% penetration rate, up from 200,000 LED street lights in 2010 for a 4x growth from 2010 to 2012.
The same report states that there are 54 million parking fixtures (38million -garage and 13million -parking lot) and in 2012 600,000 had converted to LEDs for a 1% penetration rate but at a 10x growth rate from 2010 from the 60,000 installed LED lights in 2010.

The parking lot conversion rate was estimated at 200,000 LED out of 13 million total for a penetration rate of 1.5%.

So on the Santa Cruz area.  The first area picked was 41st Avenue in Capitola.  It is 1.8 miles long and with the counties only enclosed mall, two big box stores, three supermarkets, two hotels and a number of other businesses it is primarily commercial and the busiest commercial street in the area.  It also has some LED street lights installed along it.

The count – there are approximately 550 parking lot lights along 41 Avenue.  This includes the large and small lots, but only those facing 41st Avenue.  For example the mall lights that stretched along Claires and Capitola Avenue were not counted.  The lights in the two covered parking garages were not included in this count.  Almost all of these lights are the shoebox style HID lights, with some architectural lights along the edges and driveways of two of the larger lots.

LED penetration – of the ~550 lights – 16 are LED. For an almost 3% penetration rate.  The 16 lights were installed in 4 different lots.

We will periodically recount the lights and track and publish the adoption rate.

The installed LED luminaires take advantage of the ability of LEDs to be packaged into compact and unique shapes while delivering the energy efficient light.

These lights are located at 1030 41st Avenue, 1071 41st Avenue and 1200-1220 41st avenue.

A technical note on the lights with the large yellow – egg yolk looking spots. All of these styles of white light LED luminaires generate the light from a blue LED.  A yellow phosphor is placed over the blue LED which converts the blue light to look like white light.

Some LEDs are made with the phosphor directly on the LED – the lights at the top are like this so the yellow area is small.  Another way to make the lights is to have the phosphor mounted above the LED – remote phosphor is the term.  This is what you see in the lights with the large yellow areas.

View Larger Map

The post LED Lighting Adoption Rate – Parking Lot Lighting – Baseline Count, 41st Avenue, Capitola, California appeared first on Santa Cruz LED Resource Guide.

1) The canopy lighting.  Because this is a 24 hour operation which needs to be well lit, the energy savings from LED lights is an advantage. The reliability and good color rendering are also positive attributes in this application.

2) The perimeter lighting.  The thin form factor of LED lights enables the design of compact  lights which direct the light where it is most useful.

3) The refrigerator cases.  Because LEDs operate more efficiently when they are cool this is a great application for them.  They last longer and light immediately when turned on as there is no warm-up time. In addition to the energy savings and reduced maintenance costs – the distributed point-source nature (lots of little bright lights) the merchandise sparkles more that it does under other refrigeration lighting.

The vertical strip of bluish (high color temperature) LEDs can be seen in the picture on the right, behind the Pepsi logo.

View Larger Map

The post Capitola, California Shell Station Converted to LED Lighting appeared first on Santa Cruz LED Resource Guide.