Features: Professional laser head with high speed and high stability. Bright blue-violet light or blu-ray,easy for locating when engraving. Adjustable laser head,easy to adjust,ensure engraving with good quality and high efficiency. Aircraft aluminum heatsink with cooling fan ensures continuous long hours of work. Small and compact,convenient and easy to install. Specifications: Material: Metal Laser Power: 300mw / 500mw / 1600mw / 2500mw / 5500mw (Optional) Light Color: Blue-violet or blu-ray Wave Length: 405nm(300mw/500mw) / 445nm(1600mw/2500mw/5500mw) Facula Form: Punctiform, Adjustable Focus Input Voltage: 12V 5A Drive Mode: Extraposition ACC Constant Current Cooling Mode: Active / Forced Air Cooling Interface Parameter: XH2.54-3Pin / Support PWM/TTL signal controls power Item Size: 86*33*33mm / 3.3*1.3*1.3in(300mw/500mw/1600mw/2500mw) 55*44*96.5mm / 2.1*1.7*3.8in(5500mw) Item Weight: 129g / 4.55oz (300mw) 130g / 4.58oz (500mw) 133g / 4.69oz (1600mw) 149g / 5.26oz (2500mw) 252g / 8.89oz (5500mw) Package Weight: 147g / 5.19oz (300mw) 147g / 5.19oz (500mw) 150g / 5.29oz (1600mw) 167g / 5.89oz (2500mw) 272g / 9.59oz (5500mw) Package Size: 95*70*40mm / 3.7*2.8*1.6in (300mw/500mw/1600mw/2500mw) 105*80*45mm / 4.1*3.1*1.8in (5500mw) Note: 1. Limited materials can be carved, such as wooden objects, organic , artificial marble, paper, double color board, leather, resin, etc. 2. Applicable to our on sale engraving machine: VG-L2 Desktop DIY Engraving Machine, 2500mw Desktop DIY Laser Engraving Machine CNC Engraver Carver and LG-L5S Desktop DIY Engraving Machine. Package List: 1 * Laser Head