led grow light

Spectra, power, cooling, dimming and others, please give me some suggestions

So I am Looking at lighting upgrades and wondering is it worth it right now i am rocking 2 VIPARSPECTRA UL Certified 600W LED Grow Lights in a 48"/48"/80" Grow tent now i am thinking about going for just one Spider Farmer SF-4000 a little pricey but still interested would it be worth it is their...

Sometimes i find things not on this web site or better explained (no offense I love GWE!) and i stumbled on this web page that explains LED's pretty well and also explains HID equivalency and why they say it is "equivalent to wattage" in reference to HPS or MH. Thought this would be a good place...

Hello evryone,... I'm growing hydroponic in a cabinet about 1.2mt x 1mt. 4 plants feminized, under hps, with intra and exhaust fan. Hps 400wt. PH stable. Good temp and humidity, plant very healthy! Scrog, but due to stech period too long and not well managed, my canopy not so even at all.... I'm...

Hi guys starting my first grow with 3 DP Auto Mazar's in soil/perlite under a 300w Viparspectra. Worried my 300w may not be enough so looking at adding some more LED full spectrum light to the grow box. Has anybody used these UFO panels? Are they any good? They look ideal to light up any...

I have got a viparspectra 300w LED and wanting to put 3 Auto's under it in soil using 20L pots. How far should my light be from the top of the Seedlings? during veg? and during flowering plants? Cheers guys!

Hi, Today installed vehicle led light bar on my 10 days old plant. It has 3 watt diodes with lenses. Total 144 Watts. Has anyone tried this kind of light for growing marijuana?