ORTUR LU2 3W/7W/15w/20w Replaceable Laser Module Variable Focus PWM Mode for Desktop Laser Engraving Machine

$69.99
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ORTUR Lu2-1 3W laser module (electric power: 3W, optical power: 400-500mw) external drive board.
Small focus, low energy consumption, suitable for carved wood chip, paperboard, white paper, grayscale image effect is the best.
ORTUR  LU2-2 7W laser module (electrical power :7 W, optical power :1.2-1.6) external drive board.
The focus is slightly larger than lu2-1, but the power energy is larger than lu2-1, so the engraving depth on the wood paper is better than that of lu2-1, and it can react on the black metal oxide layer.
ORTUR LU2-3 15 W laser module (electrical power :15 W, optical power :3.5-4 W)
It can carve all kinds of wood, paper and metal oxide layer. It is good at cutting plywood, black acrylic, and gray image effect is good. It can increase smoke exhaust function, improve heat conduction efficiency of light source, and improve product stability.
ORTUR LU2-4 20W laser module (electric power: 20W, optical power: 4.5-5w)
It can directly carve stainless steel, with good carving effect and precise focus, which can solve the problem of difficult focusing for customers, increase smoke exhaust function, improve heat conduction efficiency of light source, and improve product stability.

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