Hey there, being an electronics techno geek this LED stuff is right up my alley. So after doing tons of research into light spectrums, diffusion angles, temperatures, heatsink vs fan etc etc...my buddy and I figured we had a pretty good understanding of what to look for in LED lamps. We then took to the net and found that we could buy them cheaper then building our own as originally thought. Alibaba.com is freaking awsome if you can stand dealing with the Chinese directly. I figured that since most of the lights are made in China anyway (the LED components mostly) we might as well skip several middle men. We found the CASA 300w LED Grow Lights for less then $100 each. We got 6 and they were about $105 each with shipping, got here in a week too. http://www.casa-laserlight.com (same light but not where we got ours)
They seem very sturdy and well built for something so inexpensive. I thought for sure they would be rinky dink but I was pleaseantly surprised at the quality and build.
The fans are a little noisy (3 fans per unit), but I only sit in my room 23 hours a day watching them grow and it doesn't bother me in the least. Somehow the corners of my mouth cover my ears from grinning so hard I figure. Outside you cannot hear them at all.
They are made using 100x3w LEDs. with 9 different spectrum lamps designed specifically for indoor gardening.
I have not plugged in my meter to see what they are drawing amp-wise, but it has to be less then my 600w HPS for sure. The rooms stay nice and cool with no heat issues to deal with.
I have used them for both vegging and flowering and they work just fine for both. I am just finishing my 1st full harvest with some small kush clones and they are as plump and sticky as can be.
I am going to do a side by side with 2x300w and the tried and true 600wHPS with the next crop to see what differences are there. Hmm, maybe a good idea for a grow journal he says to himself...
I found that the plants like them to be a foot away or so. You can get tiny light burns on the tips of leafs even though they are not that hot. I keep them about 16" from the closest part of the bush.
The penetration is superb with these. I put my light meter on the soil under the plant and the LED pegs the meter while the HPS gets about 25% deflection. HUGE difference for them little popcorn guys near the bottoms. Makes them all come to life.
So there you have it, my first official post, not counting intro. I hope I followed all the rules.
2. 9 Bands for Indoor Plants Growth & Flower
4. Spectrum of Light: 410nm,430~440nm, 450~475nm,500nm,610nm,620~630nm, 650~660nm,730nm,and white 12000K
5. Black metal casing
6. Lifespan: 50000-100000 hours
7. Angle of leds:90/120°
9. Item Size:400*216*68mm
10. Net Weigtht:approx.3Kgs
11. Applicable for:indoor gardens and greenhouses use only
12. Packing list
1PC 300W LED Grow Light
1PC lifting hook
1PC Power Cable(We can supply AU,US,UK or EU style)