Related by context. Frequent words. (Click for all words.) 86 light bulb 68 light bulbs 68 lightbulbs 57 bulb 52 bulbs 51 CFLs 49 LED lights 48 incandescent bulbs 47 lamp 47 lights 47 toaster 47 fluorescent lights 47 incandescent 46 fluorescent lighting 44 lamps 44 water heater 44 incandescent light 43 streetlight 43 chandelier 42 stove 42 LED bulbs 41 LEDs 41 watt 41 unplugging 41 candle 40 washing machine 40 thermostat 39 electricity 39 cooker 39 fluorescent 39 smoke detector 39 clothes dryer 39 toasters 38 faucet 38 solar panels 38 sprinkler 38 dishwasher 38 transformer 38 doorknob 38 installing solar panels 38 globes 38 LED lighting 38 smoke alarm 38 furnace 38 air conditioner 38 toothbrush 37 unplug 37 lighting fixtures 37 hair dryer 37 microwave oven 37 lighting 37 windmill 37 compact fluorescent light 37 microwaves 37 contraption 37 stoves 37 filament 37 fridge 37 LED 37 light emitting diodes 36 electrical 36 electrical appliances 36 neon lights 36 alarm clock 36 invention 36 photovoltaic cells 36 gizmo 36 kWh 35 flickering 35 lantern 35 neon 35 kilowatt 35 vacuum cleaner 35 flicker 35 fridges 35 photovoltaics 35 sockets 35 Lighting 35 streetlights 35 volt 35 clocks 35 loo 35 urinals 35 watts 35 water heaters 34 VCR 34 wattage 34 thermostats 34 inventions 34 toilet 34 heater 34 halogen 34 microwave 34 kilowatt hour 34 glows 34 energy 34 tin foil 34 inverter 34 rewire 34 turntable 34 fuse