Do not trade off HPS for LED, you said you want maximum yield? Stick with the HPS. If you decide to grow with LED you will be getting some nice popcorn buds, not even worth it IMHO.

Stick with the HPS, you will not be let down. LED is severely overpriced and the benefits do not outweigh the savings on electricity.

HPS is still the preferred method to growing indoors because there is a pattern occurring, it's called success. The light penetrates the entire canopy of the plant, giving you higher yield throughout. LED does not, unless you line the room with them which I assume will cost you alot more than you bargained for. HPS systems are the closest in regards to light spectrum to that of natural sunlight, which is what the plants want... surprise surprise... LED's only output certain light, lacking all the other light thrown off by the sun.

To me, LED systems are just a way for companies to buy cheap parts and sell overpriced equipment, thus turning a huge profit at the expense of fools that are taken aback by the flashy new technology which doesn't even compare in the least to HPS..

@ ugh, you wanna trade that 1000W HPS for some LED's, I will gladly take that off your hands if you have no use for it. haha.

EDIT: I know I will most likely get flamed here from the LED bandwagoners. Just saying that HPS has and always will surpass that of LED's, I would be more than happy to take on someone with the best LED setup to my 1000W HPS, lets see who yields higher every time. I only have to buy one fixture... How many do you need?
THContent Reviewed by THContent on . Replace 400W HID for LED??? I'm looking at replacing one 400W HID light which I'm currently using to cover two plants in a 4 ft x 4ft space? Ideally want to get maximum yield. Any suggestions please and an idea of price, make, wattage, etc? Seem to be having difficulty getting any good information for purchasing in UK. Any info greatfully appreciated!! Rating: 5