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LED (16 faqs)
       What is an LED 879
       Where have LEDs been used in the lighting industry? 875
       Why does the identical LED chip package lumen depreciate at different rates from manufacturer to manufacturer? 924
       What are the advantages to using LED luminaires? 901
       What's the difference between efficiency and efficacy? 857
       Why are LEDs considered a GREEN technology? 851
       Isn’t a lumen, a lumen (spec sheet comparisons)? 931
       How do you evaluate LED products? 866
       How are LEDs able to outperform HID? 896
       If an LED fixture has lower initial lumen output than a traditional HID light, how can LED claim to deliver lumens more efficiently than HID? 804
       How does ambient temperature affect LED efficiency? 911
       What is junction temperature? 831
       Do I have to replace LEDs? 918
       Why is the life span of an LED measured as lumen depreciation? 846
       How long is 100,000 hours? 871
       LED Catalog 864