forget about your need for auto off. What you really need is a light whose switch design does not cause it to turn on accidentally. I dont think you will have a problem with the following options turning on accidentally. These are all AA (I think that makes more sense for a work light, longer battery life, higher high than AAA):
1. Zebralight SC52fw this is possibly the best of the bunch for a work light.
2. Olight S1A, but it is only offered in Cool White.
3. I like the L11c with Nichia LED, but it is not dropproof so probably a bad idea for a work light, even though it has the best color rendering