So after messing with Fake Points for a while, I finally got a real CompM3. I didn't realize these things had such high battery life. Do they really last 50000 hours (5.7 years) on one battery? Do you guys just leave them on or do you turn them off when not in use? I like the idea of just leaving it on but do I run the risk of burning out the LED prematurely? Letting it run 24x7 for more than 5 years must take a toll?