Yodaweed
Well-Known Member
600w of LEDs will not replace a 1kw hps, you notice that these guys have ZERO grow logs up showing a side by side of a 600w LED vs a 1kw HPS? you know why? the HPS crushes the LED when both are used properly, the only measurement of light that matters is how many photons it outputs, HPS still king on output. 1kw DE light is outputting over 2100 umol you're not gonna come close to that with a 600w led. You are asking the people selling you the light what they think, what they think is they want your money and are gonna tell you whatever to sell you their products. There is no tests that show what they claim because what they claim are lies. It's gonna take more like 750w of LEDs to compare to a 1kw HPS.i just asked timber about that and they came back with the following
A 1 kW DE HPS outputs roughly the same PAR wattage as a 600 Watt COB light - that is due to the efficiency of the LEDs.
We have many growers who use that particular setup in place of 1KW HPS with good/better results.
We also use that setup in commercial facilities that are replacing their DE HPS lights.
Let me educate you to something these LED makers are well known for it's called skewing numbers and using PAR to confuse people and sell them junk, PAR is a TERRIBLE measurement for buying a light. Blue light is weighed MUCH higher in a PAR chart, since white LEDs are made from blue LEDs they contain a TON of blue light. Blue light is not great for flowering cannabis, HPS contains little blue light but a ton of red light which is weighed less in a par chart however when flowering weed plants red light is king which HPS has a ton of , LEDs lack red light since they are a blue diode sprayed with a coating. Hence why you should never use PAR to tell you what a light is outputting.
This is why their skewed numbers don't tell the real story, yes they might have huge PAR ratings, but in a real world situation LEDs will always fall short and that's why you rarely see side by sides and when you do you often see the HPS side doing a lot better during flowering.
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