Powerful Cutting Performance: The RAY5 20W laser uses advanced beam compression tech to cut up to 15mm pine wood and 8mm acrylic in one pass—up to 25mm wood and 35mm acrylic with multiple passes. It even precisely cuts 0.05mm stainless steel. Multi-Color Engraving & Multi-Machine Control: Features a 256-color grayscale and ultra-fine 0.08x0.1mm laser focus for high-contrast, detailed engravings. Perfect for production—control multiple machines from one PC for 24/7 batch engraving and increased efficiency. Ultra-Fine Engraving Precision: Equipped with a 0.03x0.03mm laser spot, the Longer Ruby 2W laser module delivers extreme accuracy for detailed engraving. Easily handles intricate patterns on various materials like metals, plastics, and more—perfect for professional-level results. Wide Material Compatibility: Engraves a broad range of materials including iron, copper, aluminum, titanium, gold, silver, coated metals, leather, ceramics, and stone. Whether you're creating art or functional parts, this machine gets the job done. Smart Safety Features & Easy Operation: Includes motion detection, overheat protection, emergency stop, and protective goggles for safe use. The 3.5" color touchscreen and four connection methods (SD card, USB, app, Wi-Fi) make setup and operation fast and easy. Lifetime technical support included. Longer laser engraver Air Pump feature adjustable airflow of 10-30L/min to effectively suppress smoke and dust, preventing laser energy attenuation. The powerful airflow cools quickly, preventing excessive burning and ensuring cleaner, smoother cuts. With only 60dB of noise, similar to a household fan, it's ideal for cutting and engraving materials 3-6mm thick. Easy to install with no extra accessories needed, the 2m flexible tube ensures precise cutting and engraving. Longer RAY5 20W Laser Engraver with Ruby 2W Laser Module, 0.03mm Ultra-Fine Spot, Cuts Metal/Wood/Acrylic, Touchscreen, WiFi/APP/USB, for DIY & Small Business