Excellent & Wonderful Laser unit. I bought this system rated @ 150mw which is exactly what the output was on receipt. The pot can be adjusted up or down for minimum and maximum output. Just to see what the Maximum Output was I adjusted he pot. The original Amps were set to 172ma at the diode pin. I was able to get a maximum of 287ma & the beam got nice and bright under indoor lighting. I got a max beam output of 249mw with the 287 milliamps. I settled on 220mw and the heatsink didn't even get slightly warm! It has a GREAT HEATSINK & FAN.......

Rating: [5 of 5 Stars!]