Could you replace a 1000w HPS with less wattage of LED and achieve same results?

Even if that meant using say 800 watts of LED, could you eventually get up to the same levels of intensity, canopy penetration etc on less wattage? If so, how much less wattage could you get away with?

Imagine you had a cooled 1000w HPS lighting up a 3'x3' area well cooled 18" from the canopy. What would it take from LEDs to match this and how many watts would you have to use?

Could 350w of LED ever hope to do this? I dont think so, but I dont know. I imagine more like 600-700W but I am curious. Also while I'm asking this, if it were theoretically possible to wire 1000w of T5s could that achieve the same results as a 1000w HPS? What about 1000w of CFL vs 1000w HID?

I do not think so , not YET. Leds are great for veg, but have not seen one that will compare to an HPS light.

1. Sunlight
2. HPS
3. CFL
4. LED

imo..

-Sun
-Hortilux HPS > everything else

isthis2012 said:

Could you replace a 1000w HPS with less wattage of LED and achieve same results?

Click to expand...

no. and its not about the wattage of the LED what really matters its the spectrum, and spread of the optics..... but what your going to loose with LED's is IPAR and APAR which has alot to do with this penetration your refferring to.

has to do with the way the HID lamp operates vs the LED array....

the HID lamp is omnidirectional light from a single point source.
an led is directed (focused) light from an array (bank) of several LED single point source lamps.

the HID more closely mimics the spread of natural sunlight vs the LED.
to achieve similar results or camparable results to a 1kw HPS you would need at least 4 banks of led's, one above, and 3 on the sides to get the same penetration as a single HPS lamp.

im not knocking LED's., but the technology is just not there yet to compete with such a high wattage HID lamp.
maybe in another couple of years... just not 2011.

What he said^....ALMOST THOUGH ghl i think is the 1 with good leds but like a grand for 300w but 2 of these would produce nice nuggets and supposively better THC but i havent done this myself and 2gs on lights is alot..HPS still the best and until they make there prices more realistic they wont sell there leds..