AL2 5W Laser Engraver - The Great Beginner's Choice. Assembly takes just 10 minutes, making it perfect for newcomers. The powerful 5W module filters 97% Uv, features fixed focus, dual cooling fans, air assist, and up to 8,000 hours of life. Start with a 15.35""x15.35"" engraving area, expandable to 15.35""x23.62"" with the ETK1.0 extension bar.