IMO, the XHP70 is probably not the best emitter for this type of light. If you’re going to go through such trouble in building such a lamp, it might as well be worth it… and then some. Ive been running a very rare top-of-the line 97 CRI large Bridgelux at better than 7000 lumens (bounced light), and cant see going with anything less in my bed room or work area when I want excellent illumination for reading and projects. I got used to having bright even lighting on demand and find it much easier on the eyes. Its like opening the window curtains during a sunny day. :bigsmile: I cool the emitter with a used computer heat sink and a cheap 120mm low velocity fan that cant be heard unless Im very close to it. Even then, its not noticeable unless I listen for it. The high end constant current Meanwell LED drivers with PFC adjust input power to correct for the highest power factor (efficiency). I am getting a .99 - 1.0 power factor with my setup, which doesn’t get any better. Everything runs warm to the touch but never hot. Around 130 degrees F max. And of course, the light quality is the absolute very best I have ever witnessed from any man-made illumination source anywhere.
Im considering putting a few of the emitters with constant current Meanwell drivers up for sale, but the owners would be responsible for adequately cooling them. I could set them up for any constant current level up to the emitter max of 100 watts with a twist of the on-board pots.
Here’s my set-up and observations.
Thoughts?