Related by context. Frequent words. (Click for all words.) 75 incandescent bulbs 70 incandescent bulb 69 CFLs 66 incandescent light bulb 65 LED lamps 64 incandescents 63 fluorescent lamps 63 CFL bulbs 63 LED bulbs 60 compact fluorescent bulbs 60 light bulbs 59 LEDs 59 incandescent light 58 incandescent 57 LED lights 57 bulbs 57 compact fluorescents 57 light emitting diodes LEDs 57 fluorescent lighting 56 watt bulb 56 LED lighting 56 fluorescent bulbs 56 lightbulbs 55 luminaires 52 luminaire 52 LED 52 dimmers 52 lighting fixtures 51 bulb 51 light emitting diodes 51 halogen 51 ballasts 50 LCDs 50 OLEDs 49 lamps 49 light emitting diode LED 49 CRTs 48 light bulb 48 LCD monitors 48 HFCs 47 LED TVs 47 inverter 47 ENERGY STAR qualified 46 photovoltaic modules 46 LED backlight 46 cathode ray tube 46 light emitting diode 46 OSRAM 46 electrical appliances 46 lightbulb 46 inverters 45 lumens 45 kWh 45 watt 45 fluorescent lights 45 refrigerants 45 lights 45 watts 45 streetlights 45 acid batteries 44 illumination 44 decorative lighting 44 photovoltaics 44 Osram 44 electricity 44 PV modules 43 diodes 43 LCD TVs 43 lighting 43 transformers 43 water heaters 43 LED backlighting 43 Lighting 43 BIPV 43 laser diodes 42 kilowatt hours 42 kwh 42 diode 42 Earth Hour 42 air conditioners 42 backlighting 42 backlight 42 OLED displays 41 mW 41 brightness 41 PET bottles 41 CFCs 41 capacitors 41 washing machines 41 Solar PV 41 wattage 41 kilowatts 41 reflectivity 41 ENERGY STAR ® 40 luminance 40 lithium batteries 40 ENERGY STAR 40 appliances 40 OLED 40 ACs 40 Lighting Science