1PC Red Laser Module 250mW 650nm High Ppower Laser With Focusing DIY Engraving Machine DC 3-4.5V Laser Head DIY Crafting XH2.54

Features:

*weavelength: 650nm

*Optical power: 200-2850mw

*voltage:DC 3-4.5V,current: less than 350ma

*diameter: 12mm,length: 45mm

*Wiring method: red is positive, black is negative (2.54 plug, plug with triangle mark is positive)

*Note: Please use heat dissipation equipment as much as possible for high-power lasers. It is not suitable for continuous operation for a long time.