Features 1、Upgrade Blue Laser Module --- Professional laser head have upgrade with a lower loss and higer precision and keep with high speed and high stability, at the same time prolong the laser modual/u0027s service time. Bright blue-violet light, easy for locating when engraving. 2、Adjustable Focuse --- Adjustable laser head, easy to adjust, more flexible use and ensure engraving with good quality and high efficiency. 3、Easy to Assemble Safety Use --- Small and compact, convenient and easy to install. Come with a protect goggles, ensure a safety working process. 4、5500mW Carving Material --- Wood type, some plastics, paper, bamboo, horn, thin leather (wallet), rubber stamp, tooth, PU, Printing paper, PVC, horn, crab shell, lobster, mammoth, ivory, linden root, resin, spectacle lens, metal painted surface,those kinds of flammable materials. 5、5500mW Cutting Material --- Within 1.5mm thick paper, leather, non-woven fabrics, flocking fabrics, aircraft wood, stickers, etc. Specification Upgrade Blue Laser Module with Lower Loss and Higher Precision is designed for both 3D printer and CNC mill. With 450nm wavelength, it is an effective tool for laser engraving and laser cutting. There 4 powerful laser modual for choose, they can engrave and cut a variaty of materials. Features: Upgrade Blue Laser Module --- Professional laser head have upgrade with a lower loss and higer precision and keep with high speed and high stability, at the same time prolong the laser modual's service time. Bright blue-violet light, easy for locating when engraving. Adjustable Focuse --- Adjustable laser head, easy to adjust, more flexible use and ensure engraving with good quality and high efficiency. Easy to Assemble Safety Use --- Small and compact, convenient and easy to install. Come with a protect goggles, ensure a safety working process. 5500mW Carving Material --- Wood type, some plastics, paper, bamboo, horn, thin leather (wallet), rubber stamp, tooth, PU, Printing paper, PVC, horn, crab shell, lobster, mammoth, ivory, linden root, resin, spectacle lens, metal painted surface,those kinds of flammable materials. 5500mW Cutting Material --- Within 1.5mm thick paper, leather, non-woven fabrics, flocking fabrics, aircraft wood, stickers, etc. Specifications: Color: Black/Red (optional) Laser Power: 5500mW/10W/20W/30W (Optional) Material: Aluminum Alloy+Plastic Light Color: Blue-violet Wave Length: 450nm Facula Form: Punctiform, Adjustable Focus(30W can not adjust focuse) Input Voltage: 12V 2A Interface Parameter: Support TTL signal controls power Line Length: 330mm Item Size: 100*30*30mm/3.94*1.18*1.18in (5500mW/10W) 99*40*40mm / 3.90*1.57*1.57in (30W/20W) Item Weight: 165g / 5.82oz (5500mW) 170g / 6.00oz (10W) 184g / 6.49oz (20W) 221g / 7.80oz (30W) Package List: 1 * Laser Head 1 * Pretect Goggles 7 * Kraft Paper 1 * Bag of Installation Accessories 1 * Screwdriver Package List 1 * Laser Head 1 * Pretect Goggles 7 * Kraft Paper 1 * Bag of Installation Accessories 1 * Screwdriver