I have a Hulk ultra series 250mW Green laser I purchased about a year ago.. I put the battery in the wrong way yesterday and fried something inside.. It won't turn on now and I don't know how to fix it... My warrenty just expired, so I don't feel like paying to get it repaired.. I'm sure the Diode is still good, It shined bright right up until last night when i fucked it up. prob less than 10 hours of use. ANyway, I have no use for it anymore and no knowledge of how to fix it.. Make me an offer and I'll ship it anywhere in the U.S.