The Laserworld EL-150B is a blue single color laser system with a total output power of up to 150 mW. The blue laser diode module with a wavelength of 450 nm ensures bright blue beams. At the same time the projector has good beam specifications with a beam diameter of about 3 mm and beam divergence of about 1.5 mrad and it offers high-speed stepper motors with 2-5 kpps as well as a scan angle of up to 30°. Approximately 50 preset basic patterns, like layers, tunnels, fences, waves etc. are available in the sound-to-light mode. For this mode the sensitivity of the integrated adjustable microphone can be altered. There is an on-off switch at the rear side of this very compact device. The Laserworld EL-150B is a very affordable solution for first-time users and it is often used in bars, small clubs, at private parties or home use.