This is just the light I have been waiting for...thanks for the runtime tests...amazing.My colored E01s are on the way, I'll post pics when I get mine. I love the E01!
Okay, I did a run time test as I posted early. My E01 died at around 36-37 hours. It ran with useful output for around 34-35 hours off a Duracell akaline AAA! It then got really faint for a couple hours before cutting out. Now, the interesting thing, about 12 hours of being off, I turned it back on, same battery, and it was fairly bright again! Not full output, but much brighter than it was when it was in the 30 hour range and it has been going for 4 hours and 45 minutes. So I have been getting useful light out of a single AAA for 40 hours! I'll see how long it can run until shut down, then let the battery rest, and try again. Right now it's putting out enough light to see around in completely darkness, probably up to 10-15 feet.