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Yeah strips are becoming the new best thing because of uniformity, ease of cooling, and their ease to adapt to any size setup. I mean shit, the fluence spydr x plus has been out for a couple years now and is still one of the best LED lights. 2700k strips dont exist. 3000k is fine. People who...

Well you should have mentioned a cooltube haha. Very valid point though. But a cooltube isnt what you'd wanna use since the glass eats 10% of the photons. A vented hood of some kind would be best. It seems though that running about half the wattage of LEDs (to replace an HPS bulb) warms up...

Lol what? Just curious why you think a hood is needed for LEDs. Not being disrespectful lol. Genuinely curious.

I do respect eye hortilux, and think if you dont use their super hps bulb and you're an hps grower you're shooting yourself in the foot. But they arent the best light company by any means. They dont provide any PAR data for their bulbs. That's a sin. Explain why a hood would assist with LEDs...

Lol dont be an eyehortilux fanboy. Yes their super HPS bulb is the one to use, and they have the best MH bulb for flower (spectrum below) However, it doesnt mean all their products are worth anything. Have u seen there shitty LEDS LOL? Had one eye hortilux fanboy tell me that they are amazing...

I saw your grow you did. The quality seems very nice, but as @churchhaze and I just said, the yields just wont be all that great. Ceramic HPS is 25% (luminous) efficiency, and probably has a REALLY low umol/joule output. Having 25% efficiency and the fact 50% of the radiant output is IR means...

Yeah i cannot agree more. Eye hortilux claims the ceramic HPS has 50%, yes 50 fuckin percent of the radiant output is in the IR range of 720nm to 1120nm. Then they justify it by saying PAR is useless, so it's fine.LOL They might grow some excellent quality bud due to the PAR spectrum it does...

Yeah i do too. Still usually end up with a lil popcorn though with my old leds. I cant wait to see how much I end up with under my new strip build. Yeah id just go horizontal all the way. If you really want to, a horz strip on each wall in/near the canopy will ensure no larf, just watch out...

I dunno about those "cloak" style led strip designs. With the strips going vertically, a LOT of light will just go to the ceiling, even in a reflective tent (whatever light that bounces off the ceiling to the plants is gonna be REALLY reduced). Factor in the photons that will hit your...

It's possible. I would have figured VPD for sure though. ive never had issues with calmag under white or blurple LEDs before, including when they're butt up against the leds lol. And I dont feed much, if any calmag to my plants (soil). I got 1 magnesium deficiency under them in mid flower...

Not my cob build, but yes it is. And I have a grid to put into my 3x3 for PPFD measurements too. But not that many spots lol. It's comparable because both lights are similar in size for the space they are in, and use similar numbers of cobs per square feet. Mine is 1.11 strips per square foot...

Yeah it's anecdotal. But a good piece of data regardless. As for how his light was built, it is about 6-8" from all sides of the tent. So 40x40 - 42x42". Mine is 3-6" from all sides. 24x30". Defintiely not a perfect comparison, but good for some fun data. The PPFD uniformity using the...

Take readings in the canopy. The PPFD might look good on a flat surface, but in the canopy is where the difference between cobs/qbs/strips becomes very apparent. 4 cobs in a 3x3 and 12 cobs in a 3x3 is a fairly big difference really. Even 12 cobs in a 3x3 tent, you couldnt go nearly as close to...

All solid, good info. Here's a picture from an older grow of mine where I had diodes nearly touching the plants. No burning at all, not even close lol. This clearly shows that when you get super close to spread out diodes, it wont burn because only the diodes near each part of the plant hit...

No. Those are bottom barrel LED diodes. I bought a bunch of those 5630 SMD LED diodes a few years ago for 3$ a 2 foot strip and replaced some lights in my house with em. But for growing, they're junk!!!! These are the LED strips I was recommending. The 22" long, single row samsung f series...

OP, it would depend on your space! First off, for flower and full cycle growing you want 3000k or 3500k optimally. As for which strips to use, the single row strips are much preferable even though you'll need to spend twice as much on heatsinks since you need to use twice the strips...

Exactly lol. The initial cost of the LEDs easily is mitigated through the first harvest you pull, then some extra $ in electrical savings over time.

Solid. Yeah my friend is using a vortex s line 6" fan that is 347cfm to cool 600w of strips in his 4x4. His temps are 80-85f no problems. Which is where you wanna be under the LEDs. Should be a decent comparison. It is very true some HID systems are 2 umol/joule. But bare bulb knocks that down...

Yeah I know. But you'd be surprised how direct and uneven cobs are compared to more spread light even when you use a good amount. Especially closer up. It makes a big difference. COBs just act as mini spotlights (with a 120 degree beam lol) even at lower wattages, versus a canopy of diodes...

Yup yup and yup. All 4x4 tents im guessing? My friend has 600w of samsung strips i built for him in a 4x4 tent. He pulled 1050 grams dried. He's paranoid though so i cant share the pics because it was his grow. But go check out the quantum board thread man. Lots of great grows. So 600w hps...