Quote Originally Posted by darren1 View Post
I should probably be using my 36,000 mW bulb at over 100cm from my face for no more than 10 seconds, if that. It seems I'd be seriously overdoing it and probably DID overdo it the last time I burned my face.
Very probable. The most beneficial energy dose for us is 4,5 - 6 J.
You can calculate your own exposure time, depending on what dose you are opting for.
Here is how:

Time = Dose/(Power Density * 0, 001). Here power density in expressed in mw/cm2.