Related by context. Frequent words. (Click for all words.) 72 metal halide 67 fluorescent fixtures 66 LED lamps 65 lumen output 65 downlight 65 LED lights 64 RGB LED 64 halogen lamps 64 halogen lights 63 LED illumination 63 LEDs 63 watt LED 62 sodium vapor 62 LED lamp 62 halogen bulbs 62 light emitting diodes LEDs 62 LED bulbs 62 electronic ballasts 61 cold cathode fluorescent 61 CCFLs 61 Light Emitting Diode LED 61 fluorescent lamp 61 fluorescent tube 60 compact fluorescent lighting 60 transmissive 60 PhlatLight LEDs 60 incandescent lamp 60 High Intensity Discharge 59 LED 59 LEDS 59 downlights 59 fluorescent lamps 58 intensity discharge HID 58 photometric 58 infrared IR 58 wattages 58 dimmers 58 incandescent lamps 58 illumination 57 TFTs 57 photodetectors 57 dimmer switches 57 transmittance 56 LED lighting 56 dimmable 56 nm wavelength 56 light emitting diode LED 56 LCD backlight 56 solvent inks 56 phosphors 56 fluorescent lighting 56 fluorescent 56 pulse width modulation PWM 56 lm W 55 luminaires 55 light emitting diodes 55 ultraviolet UV 55 emissivity 55 luminaire 55 lamps 55 brightness 55 #KW [001] 54 electroluminescent 54 halogens 54 light emitting diode 54 halogen 54 UV lamps 54 compact fluorescent 54 backlights 54 brightness LED 54 fluorescent tubes 54 photoelectric 54 crystal oscillator 54 shorter wavelengths 54 UV LED 54 emissive 54 watt incandescent bulb 54 mW 54 8W 54 thermal dissipation 53 compact fluorescent lamps CFLs 53 photodiode 53 MR# [003] 53 1kW 53 watt incandescent 53 ballasts 53 LED fixtures 53 reflectivity 53 incandescent lighting 53 VCSELs 53 InGaN 53 lumens 53 #μA [001] 53 sunlight readable 53 lighting 53 fluorescent light 53 LED luminaires 53 UL Listed 53 thermocouples 53 luminance 53 projector lamp