noknees
Member
if you're switching.....630 cmh. mixable spectrum!
organic under CMH has frankly ruined me for nearly anything else, and set the bar i'm trying to clear in micro.
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Off the shelf retail store screw-in LED and CFL bulb comparisons
- Thread starter blynx
- Start date
if you're switching.....630 cmh. mixable spectrum!
organic under CMH has frankly ruined me for nearly anything else, and set the bar i'm trying to clear in micro.
You can buy the Cree CXB3590 chip for around $30, but then you still need a driver, heatsink, etc..
https://www.arrow.com/en/products/cxb3590-0000-000r0hcb30g/cree?
https://www.cree.com/led-components/products/xlamp-leds-integrated-arrays/xlamp-cxb3590
BobMarley99
Member
Once it goes down to like 3 $ I'll totally buy it. Until then say hello SIL's !
I don't understand why these COBs are so expensive. I guess it's the high demand.
I don't understand why these COBs are so expensive. I guess it's the high demand.
Considering that it's up to 100 LEDs packed together on one board, the prices doesn't seem too bad to me.
Here are some advantages of COB type LED lighting: http://www.cob-led.com/COB-LED-Advantage-Chip-on-board.html
Killkingkong
Active member
PCBuds
Well-known member
Killkingkong
Active member
I tossed the one that came with mine and put in a 20-36v 50w adapter that I bought from china. also a 12v 1a adapter to run the fan in the casing. If you want superior LED diode quality but prefer the screw in approach this is a good option. I've mad many different types (although I don't use them anymore, but I've been through hundreds of designs for this stuff)
random examples:
Nice!
StillOvergrowin
Member
LOVE the Frakenlights!!
Very creative. I think I have some of those larger CFL's for photo and video lighting. Too bad they cost over $20 each.
Just wired up my 3 socket vanity light fixture.
These things are really amazing! I have 3 fixtures running currently and 3 different species of plants that are thriving!
(NOT 3 varieties of the same plant- but 3 different plant and cacti species)
Screw in LEDs are CHEAP, SIMPLE and effective!!
This is a perfect way to start growing on a budget. You can add another fixture as your grow get bigger. The fixtures and bulbs come to about $30 each.
Don't listen to the s***talkers with no experience with LEDs.
These light have changed dramatically in the last 10-15 years.
The future is now old man!!
You no longer need a $400 light to get started!
A $30 light and a tiny closet or even black plastic sheeting will work fine for starting out.
StillOvergrowin
Member
$80 dollars?? For just a bare bulb???
You seem to be missing the entire point of this thread.
StillOvergrowin
Member
Please do a separate thread on the build with the strips, and then come back to this thread and show off the light and grow!
Pleeeease??? ( I really like watching your work and I think you're inspiring to other people here.
)StillOvergrowin
Member
Is that how you're going to install the strips?
I thought you were going to run them the length of the reflector in the orientation the bulbs were...
It looked like it would be an interesting apples to apples comparison.
How many watts per sq ft will that give you on the top?
PCBuds
Well-known member
I'm pretty sure that's how I'm going to install my 2' strips.
I ended up buying 26 one foot neutral white strips and I want to run 6 horizontal rows up each wall. They would end up over top of the 2 footers if they were installed vertically.
The two footers are cool white and will work nicely on the ceiling. They bend and spring load themselves perfectly between the walls.
I'm just going to run them "free air" and space the 1 footers off the walls to breathe.
I have no idea how many Watts or lumens I'm going to get. I'm just going to keep a really close eye on the temperature of the strips.
They are rated to a maximum of 85°C so I want to run them as bright as I can with a maximum temperature of about 75°C-80°C.
I can always add heatsinks later with the glue or thermal tape but if I glue them now then it's pretty much permanent.
$80 dollars?? For just a bare bulb???
You seem to be missing the entire point of this thread.
Ooops, my mistake. I thought this was about screw in led, but it's true they aren't available in most retail stores. It is more than a "bulb" however. Meanwhile there is much convo here about non-SIL which you seem to be fine with despite the thread title. At the end of the day, I thought it was all about growing the best weed most efficiently. My bad, guess I was mistaken.
Back on topic, I'd love to see pics of your grow using the cheap bulbs. Please post pics.
PCBuds
Well-known member
I got 56 LED segments for ~$4.80 US on an industrial quality board.
A Meanwell driver is about $24 US.
My driver's heat will be outside the cab.
I'm working with 24VDC so no electrocution.
My LEDs are spaced out so no burns.
My lights will be all over the cab so I don't have to worry about penetration. I'll just beam it up from the sides and bottom.
It's still an apples to apples comparison.
Maybe Macintosh vs. Royal Gala though.
A Meanwell driver is about $24 US.
My driver's heat will be outside the cab.
I'm working with 24VDC so no electrocution.
My LEDs are spaced out so no burns.
My lights will be all over the cab so I don't have to worry about penetration. I'll just beam it up from the sides and bottom.
It's still an apples to apples comparison.
Maybe Macintosh vs. Royal Gala though.
PCBuds
Well-known member
PCBuds
Well-known member
$80 for 70 Watts?
And it's 96% efficient?
That means it's only producing 2.8 Watts of waste as heat.
It shouldn't need any cooling vents or anything to dissipate 2.8 Watts.
I don't buy it.
I remember way back in the 90's my friend had an in-dash car stereo rated 300 Watts!!
I was thinking BS...
300 Watts in your dash would melt the dash.
It turned out it was 300 Watts instantaneous peak power for a microsecond.
It was really a 20 Watt stereo.
Be careful reading the specs. especially if they're aimed at the cannabis market.
The new Gen3 Bridgelux strips have a new industry standard of a minimum of 90 CRI.
The old color rendering index of 80 just simply isn't good enough for people to see colors properly.
I'm gonna wait for the new standard to come down in price and stock up on the ancient 2 year old stuff.
noknees
Member
a COB with a lens and no dimming is not clever.
notice the lower leaves? with how directional SILs are, hope you've realized you were just giving your soil a suntan with your bottom bulbs aimed as such.
sometimes CFLs are still the right tool for the job.
notice the lower leaves? with how directional SILs are, hope you've realized you were just giving your soil a suntan with your bottom bulbs aimed as such.
sometimes CFLs are still the right tool for the job.
