Originally Posted by 01 CAt Man Do

It just so turned out tonight I was messing with this little lamp and trying to discharge it completely so I could find out what size battery it has. Damn!...this little light has some decent run time. Not only that I discovered something else about this lamp quite by accident; IT WILL RUN AND CHARGE AT THE SAME TIME! That means if you want to you could run this lamp with a USB battery bank and never run out of battery. I have no idea yet how long the internal battery is going to run. I've had it on medium for about 1.5 hrs and it's still going. For $20 you can't beat this. Not the greatest output, tint or beam pattern but for what you are paying for it's hard to beat . ( **edit; If I would of had one of these as kid back in the 60's I would of been in seventh heaven. )