Light Bulbs (LED) Hazardous Waste Illegal in Garbage or Drains Find out what to do with hazardous waste Never Throw in the Trash LED light bulbs contain lead and arsenic, which are hazardous to your health and the environment. Never throw them away. Store them in a sealed container, and dispose of them as Household Hazardous Waste. Did You Know? Which Bulbs Are More Energy Efficient Than Incandescent Lamps? LED lights are more energy efficient than incandescent and CFL bulbs: they last 50 times as long as traditional incandescent bulb and use 80 percent less energy. Fluorescent bulbs last three to 25 times longer than incandescents and use anywhere between 20 and 80 percent less energy.