I rarely use a trouble light anymore. Rather I switched to use an LED headlight.
Best I've found is the Rayovac "Indestructable 3AAA" LED. It's crazy bright (the 'hot spot' brighter than any trouble light) and it always shines where I'm looking. Also it's very easy on batteries, it fits easily in a pocket and it seems indestructible as its name implies.
It's the best work light I've ever used. And it cost less than $15.