... & Rohs 5.Auto & Sound Laser light show, laser display system, laser display light30mw green laser display light show system1. Model: Mini-142. Laser power ... stepper motor12. Scanning Angle: between +30 to -30 degree13. Cool system: fan14. Stability: about 4 hour15. Warm-up time: less than ... , KTV, Pub, Bar, family party, stage, etc. 30mw green laser display light show system