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http://www.humanevents.com/2012/07/23/study-says-energy-efficient-light-bulbs-may-emit-harmful-radiation/
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LEED Certificates
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60 55 
75 70 
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65 60 
65 60 
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LED LIGHT 
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Traditional Comparison (LED vs. HID)
High Intensity Discharge (HID) lights include; Mercury Vapor, Metal Halide,
Ceramic Metal Halide, High Pressure Sodium (HPS), Xenon Short-Arc and
Ultra-High Performance lamps, with HPS being the most common.
Long life – LEDs last up to 50,000 hours (vs. 1000 hrs for Incandescent)
Lower maintenance/replacement costs
Energy efficient – LEDs use up to 50‐90% less energy
Directed light offers better system efficiency
High reliability, safety & durability
LEDs are solid state devices, no moving parts, no glass and no
filaments
No heat or UV in light beam
Environmentally friendly – LEDs contain no mercury.
Longer lifetime creates less environmental waste
Size and digital nature offers new possibilities, never before
accomplished
Dynamic color control
Instant re‐strike
Fully dimmable

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BOT or Performance Contract
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lm Luminous flux / Light output 
FC or lm/sqf. Luminance / Light level
Luminance / Brightness
foot lamberts or 3.426 Candela's/sqm 
UL, CE 
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Color Rendering Index (CRI) 
Color Temperature 
IP rating (or International Protection Rating, Ingress Protection Rating) 
Power Efficiency 
Luminous efficacy: Lm / W 
Light Distribution & LENS Kit 

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Working Temperature ‐40℃～50℃ 
Working Humidity 10～90RH 
Storage Temperature ‐20℃～45℃ 
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Input Voltage Option: 347~480V 50/60Hz) 120~200~240~277V 50/60Hz ~
CREE or Lumileds Bulb Material: 
Origin of LED Electronic Driver(s) - LED 
Polycarbonate plastic : Finishing touch 
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BOT. OR Performance Contract