Hi guys, today I received three lasers from Sanwu, two of which were a 800mw 635nm Challenger and the there was a 250mw 405nm. The red laser is not very good at burning, albeit bright. The 405 lights things on fire and smokes things very fast when focused, but the red laser is slower even though it's over three times as powerful. Is there an explanation? I've fully charged the batteries. :thanks: :undecided:
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