Rolla J
Well-Known Member
What about cxm22?
Enigma
Well-Known Member
The Bridgelux Vero 29 C is putting out about TWICE the light as the CXM22 at a lower amperage.
I don't know about spectrums though, Google data sheets for each and you will see for yourself.
Randomblame
Well-Known Member
Now you have so much positive and correct said in your last few posts. Why now such a claim? You've seen cobby's charts... the CXM22 rules at low current! While Vero29c is a really good chip it's not the best in terms of effiency. Maybe ask Kevin if you don't trust any other reputable forum member. I bet, he will told you the same.The Bridgelux Vero 29 C is putting out about TWICE the light as the CXM22 at a lower amperage.
I don't know about spectrums though, Google data sheets for each and you will see for yourself.
BadlyDrawnBoy
Active Member
https://www.tastyled.com/Tasty-LED-T22-LED-grow-light-p/t22-4000-80.htm
Is this kind of light suited for only one plant, or would it perform well for multiples in a 4x4 tent?
I'd like to upgrade to something like this for my next grow, using this light in conjunction with the two other cheaper led lights I had bought for my first grow. Doing three plants, I'd have three lights, one of which would be the tastyled light in the link.
Is this kind of light suited for only one plant, or would it perform well for multiples in a 4x4 tent?
I'd like to upgrade to something like this for my next grow, using this light in conjunction with the two other cheaper led lights I had bought for my first grow. Doing three plants, I'd have three lights, one of which would be the tastyled light in the link.
Randomblame
Well-Known Member
If you want to compare this two chips...
The vero is a 68v COB and the cxm22 a 50v cob. If you want to compare both and the vero chip is getting 1050mA you need to drive the cxm22 at 1400mA to reach the same wattage. Compare maximum current of both chips, you can drive the cxm22 at a higher current and still get comparerable results. By no means a vero29c puts out twice as much light at comparerable power draw.
Use the datasheet and work out how much lumens you get from each COB if you drive them both at 100w! I'm sure, non of them produce twice as much as the other at the same wattage and that is what matters at the end not amperage!
The vero is a 68v COB and the cxm22 a 50v cob. If you want to compare both and the vero chip is getting 1050mA you need to drive the cxm22 at 1400mA to reach the same wattage. Compare maximum current of both chips, you can drive the cxm22 at a higher current and still get comparerable results. By no means a vero29c puts out twice as much light at comparerable power draw.
Use the datasheet and work out how much lumens you get from each COB if you drive them both at 100w! I'm sure, non of them produce twice as much as the other at the same wattage and that is what matters at the end not amperage!
Enigma
Well-Known Member
The Tasty website should have diagrams on what they suggest to use in different spaces. That fixture is actively-air-cooled which means you could drive them harder than the 45W they are capped to with the driver they come with.
Enigma
Well-Known Member
The CXM22 is listed as a 34V chip, @ 1280 mA for 43W. That's about 5,000 lux, ~111 lm/W. That COB is comparable to any HPS. That's at a 85° Tc.
The Vero29C is listed for 69.4V @ 1710 mA for 118.7W. That's about 16,500 lux, ~155 lm/W. That's at a 85° Tc.
These are what the manufacturers recommend to run them. The lower you drive the Vero the more efficient it becomes.
I wouldn't waste money on the CXM22, you would need a bunch of them to match three Vero29Cs.
REALSTYLES
Well-Known Member
Well, guys, you forget who I am. You guys overlook me. Some that do deal with me get hooked up. If the OP wanted to pay a little more which he can PM me and I'll help him. I'm efficient lights not bullshit and I don't build lights for most. I just sell them the parts for cheap. This would be a light I would build for him
Enigma
Well-Known Member
REALSTYLES
Well-Known Member
4 - CXB3590 3500k DB 36v @1400ma
Randomblame
Well-Known Member
Nope, totally wrong! If you choose latest vero generation you need to compare to the latest cxm22 generation. Otherwise you compare apples and oranges.
Enigma
Well-Known Member
I Googled for the data sheet and that is what I found.
Randomblame
Well-Known Member
I've added the datasheet.pdf of the current gen.3, you can download it by a simply click.
Randomblame
Well-Known Member
The cxm is typical 51v @1100mA @85°C, thats 56,1w. The 3000°k CRI80 delivers 8.285lm @85°C and 8.950lm @25°C at this current. So 147,7lm/w at 85°C and up to 159,5lm/w at 25°C.
Although,
at 25°C, it will require a little more voltage (about 0.9v), so it is more like 51.9v @1100mA or 57,1w at 25°C, which still corresponds to 156.7lm/w. From datasheet!
Maybe you should look more carefully to find the latest datasheets. A good method is to add the year to the search or you visit their websites to find the newest datasheets of their latest generations.
Although,
at 25°C, it will require a little more voltage (about 0.9v), so it is more like 51.9v @1100mA or 57,1w at 25°C, which still corresponds to 156.7lm/w. From datasheet!
Maybe you should look more carefully to find the latest datasheets. A good method is to add the year to the search or you visit their websites to find the newest datasheets of their latest generations.
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Enigma
Well-Known Member
Randomblame
Well-Known Member
Okay, only these 4 screenies are neccessary to check it! Can anyone else have a look at the screenies below?
And I gave you both values, for 25 and 85°C!
And I gave you both values, for 25 and 85°C!
