Cheap And Discounts 8W TTL/PWM Laser Engraver Module Adjustable Focus Laser Head for CNC Laser Engraving Cutting Machine 450nm Blue Light Wood Tools Wholesale. Buy Directly From Merchant HUAHENGCHI Laser Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.