There are plenty of neat laser toys powerful enough to burn thing. This Burning Focusable Laser Saber can not only do that but also works as a lightsaber for cosplay. It has an aviation grade aluminum construction and output length of 440-450 nm. It weighs only 0.47kg.
This laser saber ships with carrying case, 26650 lithium batteries, safety glasses, and acrylic sword.
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