From HPS to LED

[Jp12345]

As the title says, but so much mis-information out there regarding LEDs I've hit a wall in my light of choice.

I'm looking to equally cover 4.5x4.5 scrog (ie achieving a similar luminum output at the edges as expected in the center) from a 1000w HPS with LED's with a maximum power draw of 900w.

My lamp of choice would be a HLG 550 v2 but it far exceeds my £360 budget.

Any suggestions?

Would 9x of these; in a 3x3 formation, equal the HLG 550 in performance even though it's power draw is 350w more?

https://www.ebay.co.uk/itm/254567602659

Thanks, JP

[Jp12345]

Welcome to the nuthouse.

Have a word with Invisible Sun. They make excellent lights. They are also our sponsors.
viewforum.php?f=68

I've used different LED lights over the years, and theirs have been the best by far.

[GMO]

hello and welcome along

when we talk about plant lights we really ignore lumens for LED. the plants work in the PAR range so we look at measures of photons per second umol/s. now that your all confused lol

Par is measure in PPF or PPFD and with led you want about 500-700 at all edges like you said. its just that the measurement your using wont give you an accurate answer

LED is always fairly high end for good quality units. but with the extra cash there are long term saving besides running cost but potential replacements of cheaper versions

there are alot of options on the interweb that with the above information you should hopefully be able find something in your budget that fits your area with and even PAR map (another way plant light is shown by good manufactures).

if you need me to explain any of these parts a little more, just let me know buddy

[Jp12345]

Thanks guys :)

So am I right in thinking then that the lights in the link are trash?

Hard to compare two different lights when one gives info of luminums per LED (90 in this instance) and the other in ppfd

[GMO]

Thanks guys :)

So am I right in thinking then that the lights in the link are trash?

Hard to compare two different lights when one gives info of luminums per LED (90 in this instance) and the other in ppfd

If they are being sold as grow lights but are being measured by lumens chances are the seller or maker hasnt got a clue. id steer clear lol

[Jp12345]

Cheers buddy

[GMO]

any time buddy. knowledge is power and together we gonna over grow the world lol

again welcome along, have a good scrounge about the place. there is buckets of info and loads of comps

see ya around the boards

[Kaka786]

I switched from 600w hps to uk budmaster leds god 4 notice a big difference

[JJ]

viewtopic.php?f=92&t=8204doing good with these so far

[Wayne36]

Yeah I am old school with the mh and HPS these new led lights are so new to me