Features: 100% brand new and high quality. Professional laser head with high speed, high precision and high stability. Bright blue light, easy for locating when engraving. Adjustable laser head, easy to adjust, ensure engraving with good quality and high efficiency. Laser head is more durable and stable after high temperature and long time aging. Suitable for industrial laser engraving machine equipment, great for DIY laser engravers. Laser module able to cut paper wood,leather non-woven,fabric,paper fleece,foam,stickers,kt board ect,thick within 5mm. Adjust the focal length to 10MM, can carve stainless steel metal and aluminum black anode (except copper, aluminum raw material). Can Carve Objects: All wood, bamboo, paper, plastics, leather, rubber, horn, sponge sheet, etc. Can Not Carve Objects: All metals, , stone, ceramics, jewelry, silver, reflective material, translucent & transparent material (The metal surface has paint class can carve. Specifications: Material: Metal Laser Power: 7W/15W/20W (Optional) Light Color: Blue-violet Wave Length: 445nm Facula Form: Punctiform, Adjustable Focus Input Voltage: 12V 5A Drive Mode: Extraposition ACC Constant Current Cooling Mode: Active / Forced Air Cooling Interface Parameter: Support PWM/TTL signal controls power Item Size: 11.8*6.5*4.3cm /4.64*2.55*1.69in Package Weight:369g/13.01oz Package Size: 15*15*5cm/5.90*5.90*1.96in Note: Applicable to our on sale engraving machine: VG-L7 Desktop DIY Engraving Machine. Package List: 1 * Laser Head 1 * Panel 1 * Cable