This is one of the easiest lights ever, just plug it in and turn the laser's built-in lighting programs in Auto or Sound Active mode. This laser effect features one 50mW green laser, one 100mW red laser. Light up any party with the 8 patterns firefly laser light. This red and green laser produces more than 2000 beams with firefly mum effect, one-dimensional line, cross star twinkling, laser ring etc that may be projected on a wall, ceiling or dance floor. This laser is safe to use. The 8 Patterns Firefly's compact, light weight case desig makes it ideal for mobile entertainers, bands, night clubs and bars or any party goers!