No. Drill bulbs do not contain mercury or any other hazardous metals or chemicals. CFL's and fluorescent tubes, on the other hand, do. So you don't have to worry about special disposal procedures when you happen to drop and break an Drill bulb (if you can). However, the same can't be said for CFL and fluorescent tubes if they break.

However, LED's do get warm, and some of our industrial Drill lights will get warm as well. However, they are significantly cooler than the HID lights they replace.
No. They are extremely energy efficient and convert most of the electricity used into visible light, unlike incandescent bulbs that convert 95% of the electricity consumed into heat. That is why you can replace a 65 watt incandescent bulb with a 8 watt Drill bulb. Not only that, but you can't forget that your cooling bill will also decrease when you use Drill light bulbs because Drill bulbs produce very little heat. 45 incandescent bulbs (65 watts) when turned on can produce as much as 10,000 btu's of heat. And in the summer, this adds to the heat to your home, office or business that you then have to offset with air-conditioning.

All the Drill bulbs on this site are energy saving bulbs that can replace existing light bulbs in your home, office or business and dramatically reduce what you currently spend on your utility (lighting) bill. Also, due to extremely longer lifes, you will also be able to reduce the cost of maintaining your bulbs.