Do they contain any heavy metals like Mercury as some other energy saving light bulbs do?
No. LED bulbs do not contain mercury or any other hazardous metals or chemicals. CFL’s, on the other hand, do. So you don’t have to worry about special disposal procedures when you happen to drop and break an LED bulb (if you can). However, the same can’t be said for CFL bulbs if they break. Think about that when you have CFL’s around young children. Q 7.