4-Beam compression technology, real 20W optical power laser module. Built-in 4pcs 5W beam compressed laser diodes, 20W optical power laser module. Wide Compatibility : The Laser air pump kit is equipped with two sizes of nozzles (PC6-M8 & PC8-M8)and hoses( φ8x6mm & φ6x4mm), compatible with most of the laser cutter and laser engraver machine’s nozzle interfaces on the market.
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