Related by context. Frequent words. (Click for all words.) 84 CFLs 78 compact fluorescent bulbs 71 incandescent bulbs 70 bulbs 70 light bulbs 67 fluorescent bulbs 66 incandescent bulb 65 LED bulbs 65 compact fluorescent light 59 ENERGY STAR qualified 59 bulb 58 incandescents 58 LED lights 58 lightbulbs 55 light bulb 54 reusable bags 53 ENERGY STAR 53 reusable shopping 52 incandescent light 52 LEDs 51 LED lighting 50 ENERGY STAR ® 49 fluorescent lighting 49 lightbulb 48 water heaters 47 lighting fixtures 47 kWh 45 water heater 45 kilowatt hours 45 RECs 45 thermostats 45 lamps 45 watt 45 Lighting 45 Energy Efficiency 45 solar panels 44 halogen 44 luminaires 43 incandescent 43 refrigerants 43 Bulbs 43 electricity 43 fluorescent lights 43 smoke detectors 43 rooftop solar 43 recycling bins 43 stoves 43 appliances 42 recycle 42 kwh 42 kilowatt hour 42 LED 42 transformers 42 plastic bags 42 wood stoves 42 Energy Saving 42 streetlights 42 air conditioners 42 thermostat 41 Earth Hour 41 Plastic bags 41 kilowatts 41 globes 41 lights 41 holiday decorations 40 eco friendly 40 environmentally friendly 40 recyclable 40 space heaters 40 light emitting diode LED 40 lithium batteries 40 inverter 40 lumens 40 refrigerant 40 wood burning stoves 40 electrical appliances 40 solar 39 HFCs 39 refrigerators 39 air purifiers 39 flush toilets 39 wattage 39 lamp 39 chargers 39 Solar panels 39 weatherize 39 renewable energy 39 Lighting Science 39 heaters 39 washing machines 39 showerhead 39 showerheads 39 weatherization 39 Solar PV 39 light emitting diode 38 watts 38 environmentally conscious 38 iGo 38 Christmas Tree 38 Rebates 38 photovoltaics