Replace 400W HID for LED???

[delbwoy77]

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!!

[small vegetable]

have not experience in HID light, a 120watt led grow light can replace a 400w HID light, you may try. my opinion

[davemedinis]

A 120w or 150w square LED will be enough. I am currently using two 209W LEDs in my tent.
283545

[silent leprechaun]

Im using a Prp-Grow 260 and 4 x 20w CFL for heating purposes.

It is a great light in my opinion. You can see the entire grow on Led Logger on wordpress

Hope this helps. I got a fine yield from just 2 plants.

[ugh]

Would a GrowPanel Pro 600 watt LED be overkill for a 4'9" x 4'9" x 6'7" grow lab? I"m currently running 1000w HPS..

[THContent]

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?

[ugh]

Based on this video 90w LED UFO Comparison 400w HPS - YouTube (http://www.youtube.com/watch?v=Fh9oGroryoc) I just watched I'm skeptical if HPS in more benificial.

[THContent]

Based on this video 90w LED UFO Comparison 400w HPS - YouTube (http://www.youtube.com/watch?v=Fh9oGroryoc) I just watched I'm skeptical if HPS in more benificial.

Amazing the amount of thought you put in....

As commented on the video by the uploader:

We are not going to disclose the manufacturer, as it was stated before, as we did the research, and chose the best one as our main product we distribute.

And then again:

We sell these lights for $199, which is the same or lower than most hps lighting systems over 250 watts.

If I was the one that made LED lights and sold them of course I wouldn't make a video that would potentially hurt my sales.. With things like this they manipulate, such as let the LED veg alot longer and the HPS shorter... Of course you will get the results you WANT, vs the ACTUAL results. HPS has and always will be better, and guess what.... I am not selling them... I know from experience that they are better because I have used both.

Odds are that anyone that backs LED's over HPS is either ignorant, misinformed, selling the LED's or is advocating for someone selling the LED's... I mean cmon, you never see people advocating to sell HPS units on here because they sell themselves.

Don't you find it a little biased that they are the ones selling them and conducting the tests, of course it will be in their favor because they want you to buy their garbage and make money on you... cmon man use your head..


I would post numerous threads made by users asking this very question on other boards but that is not allowed here, so you guys can just google Which is better LED or HPS, there are COUNTLESS threads on it, and HPS wins hands down every time.

[ugh]

I'm not here to argue or have long drawn out debates. Just new to this and looking for a little insight... I've been looking to increase the amount of light in my room, but adding another light isn't an opition for me..
Also with being sort of a newb I'm wondering wether or not to change my bulb for better results. The one I am using came to me second hand and I've used it for two cycles. Or do you let them die out before changing?

[ugh]

And all I got was popcorn on my second cylce. First went off without a hitch.283730

[THContent]

I'm not here to argue or have long drawn out debates. Just new to this and looking for a little insight... I've been looking to increase the amount of light in my room, but adding another light isn't an opition for me..
Also with being sort of a newb I'm wondering wether or not to change my bulb for better results. The one I am using came to me second hand and I've used it for two cycles. Or do you let them die out before changing?

No harm no foul bud, it just hurts me to see people misinformed so I do my best to help out. :)

The bulbs should be replaced every 2 grows or so. With each use you lose lumen output from the bulb, so every 2 grows is good to change and get a new one in there to maximize your output. Some people will use HPS and MH, but I prefer to use the MH the entire grow. I am going to try MH for veg then HPS for flowering since they output that closest to the sun during certain times of the year.

MH will do good throughout the entire grow, but I guess that HPS would be beneficial more so in flowering.

I think you are about due for a bulb replacement. haha. Also, since you are a newb, check out the MH & HPS thread, it is stickied, alot of useful information that will maximize your light output to plants, i.e. distance from tops, etc.

My opinion, you are using just about the right size HPS for your grow area. Key is to make sure they are the proper distance away that way the plants suck up all the energy they need from that light.

[Douglas1]

I'm running cheap led's and they throw out more light than my plants can handle. penetration isn't great, but if you have 1k watts of led in the correct spectrum and a canopy managed in a way that promotes optimal light coverage, I would say this would spank a 1k hps.

yes, price.. would be nearly 3x or higher that of the hps unit, but its hard to say whether or not the life of the panel and higher efficiencies would make up the difference.

my 240watt panel got me several nice 6" colas off a few small plants in dirt on my first run..

for veg they are easily as good as florescents. with a much better efficiency.I have a hydro girl that is doubling in size every three days currently.

[ugh]

I use florecent in a greenhouse during veg and haven't had bad results with that. Then I switch them over to the grow lab for the final budding phase. I will be going out to get a new light this friday. I'm working with BCD for the next couple weeks and its being a diva about the light situation. So hopefully this trouble shoots a few problems. Thanks alot for the tips!

[silent leprechaun]

The proof is in my grow guys. There were no popcorn buds in my last 2 plants. I did over crowd the tent in the beginning but I got a huge yield from 2 plants.

I have 4 plants in there now under a 190w LED and 80W of CFL for heat. LED panels have come a long way. I got 5+ ounces of quality weed off 2 plants, dry. And they didnt even get a proper grow because I had to kill off 7 ! plants cos the tent was too cramped. I downgraded my tent you see. 2 plants began to win the fight for the light so after a while I realised that I would get better bud if the 2 big plants didnt hve to fight for the light. Anyway, in only 6 good weeks (6 cramped weeks) of flowering I got a respectable yield from just 2 plants. Im going for just 4 plants this time round. I expect to do very well this time.

Just be sure you don't buy your LED lights off eBay. 90+% are rubbish.

[ugh]

my first ever yeild i was getting 2 to 2.5 per plant with 6 plant. with a used 100w hps. are led less effecienct when your dealing with crowded space?

[luke3525]

Yeh I'll second that. Used 600w hid for years. Fell for all the adverts for led grow lights. Spent nearly £300 on one an sold my hid. VERY disappointing results. Slow growth small plants, small buds. Sold it on eBay after one grow an bought another hid. Moral of the story, stick to what we all no works best.
Just as a side as well, google 'smart growlamps'. now this is one light I would prefer over my hid although a little on the expensive side at the moment I'm sure they will start coming down a bit soon. Induction lighting is looking to be the way of the future grower. No heat, half the running costs, and Very good results.