Recent content by Atulip

I can only mention :420: sponsors, so I won't make any recommendations on the best lights on the market right now, but I can give some advice. Look for your PPF output, or umol/j of the light. This tells you how much light is being produced. And I usually ignore the companies that choose not...

More light, less watts than a Mars. We're getting 2-2.5+umol/j in the DIY(and some commercial) cob world. Mars hydro is half that maybe? Green aides in penetration and lower plant health, unless you still buy the plants don't use green light thing. Other than that, more light, more...

Silicone stuff all around it? I used a razor blade slid in from the front to free it.

When you look at the prices, consider the price per par watt, not the price per wall watt. Where a Mars may be $1/watt or less, hugely inefficient at maybe 25% wall efficiency. (0.25w per 1w at the wall makes light, the other 75% is direct heat) you end up paying $4+/parwatt. You may find a...

Consider led bulbs. Phillips and osram sylvania have a "100w equiv" 1500limens for 14-15watts each. Save 8-9watts per bulb, and they're only $20-25 for a 4 pack of bulbs now. Go for a mixture until they stop growing up and start to flower, then I'd go all 2700k.

Yeah you'll lose a little more to walls but not huge without reflectors. Some tents are better than others, I believe orca is best, then there's the various types of Mylar.

I'd recommend the high efficiency DIY Cree cob kits for cutting the power bill. PRODUCTS - DIY GROW LIGHT KITS - Timber Grow Lights Pre-wired, build a frame out of angled aluminum and good to go. 500-600w of cobs per 1000w replacement. 5 or 6 of the "4 cob kits" would build and spread well...

I'd atleast put reflectors on the outer cobs. But not 100% necessary, tents will help reflect some stray light. O..O..O..O..O O..X..X..X..O O..X..X..X..O O..O..O..O..O

Re: Tent Exhaust with LED....... Please help! Passive intake may be enough, but you can put an active intake. Hot exhaust out the top, cool intake at the bottom. Exhausting out of the room/building is best, filter in the tent and exhaust pulling through. I would intake from the room unless...

5 chips will cover a 48x120cm very well, long bars would spread best, say 80-100cm.

Yeah that's just the KB reflector like the Angelina, will work great.

Reflector is more efficient(corrects a smaller portion of light) opposed to lenses where all light has to pass through. Lenses may help protect the leds though. Angelina 90° reflectors is what I most commonly see. (And have on mine)