frica
Well-Known Member
You couldn't be more wrong, CFL is much less efficient than HPS.Hps lights are nowhere near as efficient as a cfl.....or else they'd be in every lamp and household........like a cfl.A high pressure sodium bulb emits a full spectrum of light red,orange, yellow blue green...etc,etc,etc.Cfl bulbs are spectrum specific which is more efficient for growing.Tha advantage of hps over cfl is light penetration and intensity.Cfls are great for smaller grows and scrogs and anything under 400w.If your space requires more light I'd recommend an led or hps with fans and ductwork.
The reason they don't use HPS in household lighting is because the Colour rendering index of HPS is around 25, it's much too yellow.
CFL is at most around 12% efficient while HPS is 20+% efficient
If you seriously think CFL is more efficient than HPS then you're uneducated