I use the Tikka Plus Headlamp for an unusual purpose: building and upgrading computers! I build half a dozen a year, and upgrade components continuously on the five PCs I have at home. This light works very well, providing lots of light in the dark, cramped spaces under desks and inside computer cases. It's a great help because I don't have to use one hand to hold a flashlight, and being on my forehead, it perfectly lights up all the small things I need to get at, such as jumpers, small connectors, and it enables me to read the small print on the motherboard and components.
The headlamp lasts a long time, which is very economical. Anyone who does much work with computers should have one.