Single COB builds

[sanjuan]

I'm glad my drivers are adjustable for current. I keep building more COB luminaires but I don't have the ambition to expand my grow. The HBG's just got turned down to 45W (from 55W) at the wall.

I'm heavily invested in Cree but I wouldn't buy it today, based on what I've been reading (although I haven't kept up with the tech).

 

[1212ham]

my veg light. 1212 4k with 36v 1200mah driver on a 140mm heatsink, power cord from my old ballast
]

What driver is that? Cost? It just occurred to me, these single COBs would also be great for a yard light.

 

[Dreddd]

Manufacturer: Mean Well USA
Part Number: HBG-60-1050

Manufacturer: MechaTronix
Part Number: MODULED MEGA 13450-B-HBG

Manufacturer: MechaTronix
Part Number: HBG-60 CONNECTOR SET

Manufacturer: MechaTronix
Part Number: M3 X 6 SELF-TAPPING SCREW

Manufacturer: Citizen Electronics Co., Ltd
Part Number: CLU048-1812C4-503M2K1

GrafTech International Holdings Inc. G10113 Sheet10: eGRAF HITHERM 1205 TIM for Citizen CLU04X (10 pc/sh)

Manufacturer: BJB GmbH & Co. KG
Part Number: 47.319.2315.50

Oh they sell self tapping screws, good to know lol, would have saved me the trouble..

 

[HydoDan]

What's the running wattage of that set up? What is the HID wattage equivalent?

It pulls 59.2 watts from the wall.. 54 cob watts.. Hid equivalent,,
less than 150 watt hps.. I guess..

 

[frica]

What's the running wattage of that set up? What is the HID wattage equivalent?

low wattage HPS is rather inefficient.
A 150W hps is probably somewhere around 0.95 umol/j (light that hits the canopy, including reflector losses)
The LED should be a little over 2 umol/j, so I guess it should beat a 100W HPS rather easily but come up a little short against a 150W HPS.

Maybe equal to a 130W SE HPS if 130W HPS existed.


If you run a vertical set up with HPS (and thus don't have reflector losses) it gets a little different because reflector losses are normally a huge factor.
I think the LED may already have a hard time beating the 100W HPS that way, but the only current grower I know who has a set up like that* is Reikox on icmag who uses a 70W CMH. (see pic)
Vertical set ups are still great but I have never seen too many people use it.

*And the vertical forum, but they generally use at least 600W HPS and not 150W microgrows.

 

[coreywebster]

^^That little set up is pretty cool!

 

[CobKits]

^^That little set up is pretty cool!

theyre all circled up!

puff puff pass!

 

[visajoe1]

What driver is that? Cost? It just occurred to me, these single COBs would also be great for a yard light.

its a spare driver from a roleadro light. in other words, cheap chinese driver. yes, they would be a great yard light, since most cobs are designed for high bay lighting

 

[bushmasterar15]

Very nice builds @Dreddd . Had a question on your builds so inboxed if you have time. Thanks

 

[bulwar]

Hi there. I want to buy:
CITIZEN CLU048-1818C4-353H5K2 3500K for my 1.72 square feet space bucket project.

Will it run at 100w @ 1750mA using LPC-100-1750 driver? Is there other driver I can use that has dimming?

Please help, I totally am not able to find drivers on sites myself

 

[CobKits]

100W of cobs is a lot for a 1.72SF space bucket.

75W prob better

 

[bulwar]

can you advice which 75w driver for CITIZEN CLU048-1818C4-353H5K2 3500K or CLU048-1212C4-303M2K1 3000K ? Cheap one preferably

 

[RandomHero8913]

can you advice which 75w driver for CITIZEN CLU048-1818C4-353H5K2 3500K or CLU048-1212C4-303M2K1 3000K ? Cheap one preferably

For your 1818 https://www.onlinecomponents.com/mean-well-hlg80h54a.html?p=43122779&utm_source=octopart&utm_medium=inventoryrefferal&utm_campaign=octopart&ref=OctopartFeed

 

[ChefKimbo]

Quick question for the experienced, I figured this thread would be a good place. I'm converted a cabinet to a veg area(21x27x36) Is it feasible to veg a few 2 ft plants in that area with a CITI 1212 5000k@700ma? After trying for about a month I have gotten mixed results, some of which I still sorting out to make sure there were no other issues. But there has been slow growth as well as even some abnormal growth and thin stems. Should this be enough to veg a few plants/clones or am I trippin?

 

[Moflow]

Quick question for the experienced, I figured this thread would be a good place. I'm converted a cabinet to a veg area(21x27x36) Is it feasible to veg a few 2 ft plants in that area with a CITI 1212 5000k@700ma? After trying for about a month I have gotten mixed results, some of which I still sorting out to make sure there were no other issues. But there has been slow growth as well as even some abnormal growth and thin stems. Should this be enough to veg a few plants/clones or am I trippin?View attachment 3952879

I use a similar space at moment for vegging n clones.
I'm using 3 x 1212s, 3500k @ 66 wall watts.
Works well for me.
1 x 1212 @ 700ma light seems a bit light on the light for 2 footers...... to me

 

[Moflow]

66 watts .
3 plants in 5 litre pots, roughly 1 ft tall, 3 clones I was given on Weds and a tray o clones.

 

[ChefKimbo]

I use a similar space at moment for vegging n clones.
I'm using 3 x 1212s, 3500k @ 66 wall watts.
Works well for me.
1 x 1212 @ 700ma light seems a bit light on the light for 2 footers...... to me

2 footers is a lofty goal indeed I do agree. I'm also learning so many things are strain dependent. Internodal spacing is great with the plants under the single cob, but the stems are just too damn skinny. I decided to add (4) 2' T5HO singles, should make a bit of difference...

 

[CollieWeed]

I finally sourced all the parts for my single cob lights.
Hbg-60-1050, mega heatsink, citizen 1812
I notice the hbg driver is only 2 wires without Ground wire.
I would like to know what kind of 120v ac power cord to attach to the driver.
Also, there is a removeable rubber grommet on the backside of the hbg driver, does anyone know if I can dim lights with that dial? With using a 10 or 100k resistor?

 

[topcat]

Under that rubber plug is a potentiometer that will adjust from 680-1050mA, even higher. A precision screwdriver is all that's needed. It's inconvenient though, as you must disassemble the driver from the heat sink. It's set and forget. The power cord is 18/2. An inline switch to connect the AC power cords makes a clean finish.

I finally sourced all the parts for my single cob lights.
Hbg-60-1050, mega heatsink, citizen 1812
I notice the hbg driver is only 2 wires without Ground wire.
I would like to know what kind of 120v ac power cord to attach to the driver.
Also, there is a removeable rubber grommet on the backside of the hbg driver, does anyone know if I can dim lights with that dial? With using a 10 or 100k resistor?

 

[CollieWeed]

Under that rubber plug is a potentiometer that will adjust from 680-1050mA, even higher. A precision screwdriver is all that's needed. It's inconvenient though, as you must disassemble the driver from the heat sink. It's set and forget. The power cord is 18/2. An inline switch to connect the AC power cords makes a clean finish.

Thanks,@topcat, I'm going to use a desktop monitor power cord.