Home / Laser cutter controllers - for K40, DIY laser diode machines and CO2 lasers / Accessories Accessories View cart “LightBurn software G-Code License Key” has been added to your cart. Showing all 3 results Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low LightBurn software G-Code License Key $60.00 Add to cart Rotary switch $27.00 Add to cart K40 Adaptor Board v2 (kit) $12.00 Add to cart