Tang 50mw light blue sound active laser party dj bar lasers ew apologise for the photo but the laser output is difficult to photograph. This professional standard product is ideal for many applications. Suitable for smaller clubs and mobile dj’s, house parties, etc. This light blue / purple 405nm laser projector is an affordable alternative to the more expensive dark blue 473nm system. This is a perfcet entry level colored laser. The eye si most sensitive to green light. Therefore, a green laser will appear brighter than the same power in rde or blue. Please use with caution adn care. Direct deposit to our account.