high green laser pointer pens, WATERPROOF Name:waterproof Green Laser Pointer can working under 50 meters deep Mode : ... working time over 5000 hours Output Wave length: 532 nmOutput Power: 100mw,150mw,200mw,250mw,300mw(also for clients )Beam Distance ... industries including the military, medical and astronomy,indicator, teaching baton high power waterproof green laser portable