LED Question!!!!

I have been looking around the site for an LED grow, I want to compare a 120W LED to a 600w HPS. Do these lights give about the same yield as each other as well with overall growth? Please if anyone knows anything about this info is much appreciated!

Also how close can you get the LED lights to the plants?

i keep my led 3-6in from the tops and dont think u gonna get yields = to that of a 600w with a 120w light that would be 5 grams per real watt brotha these lights are good at what they do but i hate how they advertise 90w=400 120=600 yeah fuckin right im getting about 1 g per watt which is very respectable almost on heard of in the led world i thik with these lights or any light 1 gram per watt is respectable even though i was way over that with hid but save inmany other ways mainly no need for an ac. fans are more then addaquitt hope i help out alittle
heres some of my led budz im expecting 3oz from her maybe more

a 600w i can pull close to a lb if not more i wouldnt expect half that off that 120 prob get alittle over 1/4lb once dialed in properly

So your saying with two 90w UFO grow lights will produce 8 ounces dried from 6 plants in 3.3 gal. buckets, it's a grow box 2.5' x 4' x 5.5' . Check out my lil journal I got going I have my setup here https://www.rollitup.org/grow-journals/340803-going-back-my-roots-bato.html.

once you get everything dialed in and with some cfls that is my goal and when i will stop fuckin around with my setup
it will also be strain dependant to i would grow less plantys imo i started of puttin 6 in the same space my first run and was dissappointed i think i pulled close to a qp now i grow 3 at a time with much better results my tent is 2x4x6 so were in the same size space pretty much i dont grow in soil or know what u usually pull but i could imagine its possible im a hydro guy myself i grow in 5gal bubble bucket with waterfarmkits with the AN connoussuer lineup with all the extra goodies only change i would make is bigger buckets i see 30 or 50gal garbage cans when i finish my basement room up and can plug my 10 600w in again i fuckin hate movin
peace bro