I have bought a couple similar ones to play with. One was 1/2 watt other was slightly more.Anyone here buy one of these:
(Wavelength : 520nm(120mW) 2+638nm(180mW)+445nm(600mW). Combined Optical Power outut: 1000mW. Modulation: TTL 0-30kHz /0V off and 5V on. 1 pcs RGB Laser. Module Size：63＊50＊40mm. Beam Characteristics :(Near to TEM)) model, Divergence<3.5mrad, Spot roundness >85%.www.ebay.com
Thoughts? Junk? Pictures of optics inside? Divergence is horrible, but I could remedy that.