I been waiting for my paycheck so I can go buy me first high power laser. When I first looked at Rayfoss I saw 1 200mw model. Now today I look and there are 3 different types of 200mw Green @ $150 - RF532-200mW-B03, RF532-200mW-FLX, Rf532-200mW-C03. I dont see the difference other then the Rf532-200mW-C03 has a 90 sec duty cycle.