500mW EleksMaker 405-445NM Blue Module 2.54-3P TTL/PWM Modulation For DIY Engraver

Professional head with high speed and high stability. Bright blue-violet light or blu-ray,easy for locating when engraving. Adjustable head,easy to adjust,ensure engraving with good quality and high efficiency. Aircraft aluminum heatsink with cooling fan ensures continuous long hours of work.