I've bought 1 watt diodes off ebay but I'm looking for a little bit more power. I found these Amazon.com: HIGH POWER Burning Cutting Laser Diode 2w 9mm 808nm: Electronics but I'm a little suspect that they really can put out 2 watts. Anyone know where I can get some legit higher power ir diodes on the cheap? On a side note do you know what kind of slope efficiency these diodes get and if I could run either the ebay or amazon diodes up to 2 watts? Thank you in advance!