Originally Posted by bulgie

Pro tip: attach a small headlamp to the Optivisor, for bright light right where you're looking. Not the kind made for outdoor use like jogging at might, they have a narrow beam. For close-up work, you want a flood or "floody" beam shape, else the little spot of light is never right where you're looking. I use a Zebralight. Expensive, but they will change your life, so useful in the shop I use mine every day. (Again, knock-offs can be much cheaper, if you don't need Zebralight-level quality.) I have several, and one stays attached to the Optivisor with zip ties. If you get the type that takes a 18650 lithium battery (longest lasting), you'll also need a charger for 18650s, and probably at least two cells so you always have one charged.