Yeahbut, turn a 60W incandescent lamp on for 10 seconds and then try and touch it. Have a 60W (light equiv) LED lamp on for 10 minutes and it will still only feel warm?
Suggesting, that (light) like for like, LED's are generally much more efficient as they generally run much cooler?
(I've got a 15W (equiv) desk lamp on here set up to the Home Automation to come on when the light level drops below a certain threshold and it's been on for a couple of hours now. Whilst it's 'warm' I can still easily unscrew it and take it out, not something I'd try with even a 15W incandescent that had been on for a fraction of that time). ;-(
What, even the stuff coming out as visible light / UV light?
Cheers, T i m