My local hydro shop has just stocked area 51 leds. here is the right up that they have on them...
AREA 51 LED Grow Light (312W)
LED Grow lights have come a long way in the past few years and the technologyhas improved beyond recognition.
The PAR of LEDs is better for the plants than HID, it has a wider spectrum, produces no infra-red (harmful to the plant) and can produce as much "usable" light as a HID 3 to 4 x more powerful in wattage terms.
Outcome depends on correct usage, LED's do not work in the same way as HPS or even a CFL. We recommend 2 x 234w AREA 51 7:1:1 colour spectrum shades per 1M2 of growing area. This gives sufficient uMOL to produce good yields.
For best results, ise in an area that has heat issues (>1.8m high tents, loft spaces etc), in this context we expect LED yields to exceed those of an equivalent HPS or CFL.
1. Up to 2m penetration of usable light
2. Perfect for hot spaces, or wherever ventilation is an issue
3. No lamp changes
4. Full UK support
-"AREA 51" LEDs use superior 660nm Red LEDs inlike many cheaper alternatives
-"AREA 51 LED" lights come with FULL UK dealer support
-"AREA 51" lights are modular and can easily be fixed locally
-LEDs do not contain many of the harmful compounds like HID lamps
-6-year life expectancy for the lamps
Details:
Wattage: 312W
Size: 482 x 315 x 70
LEDs Per Shade: 104 PCS 3W
7 colour LED spectrum
hope that helps abit..