+1 on Fenix.
The different levels and strobing are optional. The lights work just fine as a "click on click off" without having to mess with anything.
I honestly don't even remember how to change the modes on my hand held lights. I keep one in my work truck plus a 4-AA headlight, plus additional 2-AA lights in my personal truck, wife's Rav4, and one in the bedroom.
I don't think any of the quality tactical lights are made for only on-off operation.
Costco has some cool units, but they aren't likely to be any higher quality than what is provided by your company.
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