Those Magicshine knockoffs are all over Amazon and Ebay. For the price they are tempting, but I think they might be a bit of a gamble quality and durability wise. Although, if it goes to pot after a season you're not really out a lot of money. I've got one and it's holding up fine. Most come with a helmet mount and I've had no issues with the one that came with mine. All that said, I much prefer my Gemini lights and don't regret that I spent more for those.