**Rewritten Description:** Easy to Use - 12V input, 3.3-12V PWM/TTL control. Suitable for laser cutting, engraving, CNC, and DIY projects. Compatible with 5.6mm laser diodes. High-quality construction with a 20,000-hour lifespan. Features a built-in driver board, 40mm threaded copper core with thermal grease, temperature sensor, and factory aging test for durability. Clear focus with an adjustable lens. Works on materials like MDF, balsa, wood, fabric, plastic, leather, plywood, foam paper, and anodized aluminum (not for metal). **Safety Notes:** 1. Wear laser goggles and avoid direct eye/skin contact. 2. Do not engrave reflective objects. Keep away from fire and pets. 3. Ensure proper ventilation due to smoke during use. **Specifications:** - Color: Blue - LD Current: 3.2A - Size: 30x30mm - Cooling: 40mm copper core + heat sink + thermal grease + 15,000 RPM fan - Input: DC 12V - Output Power: 5.5W (5500mW) - Wavelength: 445-450nm - Beam Shape: Focusable dot - PWM/TTL Compatible - Safe Temp: <70��C - Weight: 202g - Lifespan: 20,000 hours **Test Results (3mm Plywood):** - Speed 330: 3 passes, 1.0mm per cut - Speed 200: 2 passes, 1.5mm per cut - Speed 100: 1 pass, 3.0mm per cut **Package Includes:** 1 x N30820 Laser Module *Note: Slight color or size variations may occur due to lighting or manufacturing tolerances.* Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia