600w = 2046 BTU regardless of the sourceI had better luck with hps indoors. It's a lot cheaper to get 600w of hps than 600w of good quality led. Also, the heat generated from hps goes towards heating the house.
But here electricity is dirt cheap.
For £15 its a working light, that sj reflector would cost 2x+ alone.That reflector is a load of crp man
There's a secret jardin parabolic your man of migro has a video on it
I'd recommend that cause it's a lighter material the other 1s are big heavy things
my point is that for the same price. you get 3x more wattage And a lot more bud600w = 2046 BTU regardless of the source
E.g. The 600W LED will heat the house exactly the same amount as a 600W HID lamp.
The main difference is that the HID lamp puts out significantly less light in the visible spectrum, not the quantity of heat generated.