Unless you were born with night vision goggles in your eyes, you will need a light source to get things done in low light conditions. Carrying a conventional work light is not always convenient. This Clip-On LED Work Light is compact and powerful. It clips onto many surfaces, so you can use it to read or find your way in the dark. The light runs on 3 LR41 batteries, so you can use it any time. These are pretty cheap too.