Light Bulbs (Incandescent) Landfill Don't Mix with Glass Recyclables The materials used to make incandescent bulbs are non-toxic, so it’s OK to throw these bulbs in the trash. Although they are made of glass, don’t recycle them with glass. Wrap Before Disposing Light bulbs are fragile and can break in the trash. Try wrapping them in newspaper and taping everything in place before disposing of the bulb. Broken glass can injure sanitation workers. 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.