Lighting Citizen CLU-058-1825 build

[dankle]

Here's some pics of my latest COB build. I took the advice of the forum and got kapton tape and a soldering iron. Soldered the wires between the lights and the driver, was going to use twisty connectors but it was easy enough and fun to melt some solder on them to ensure a good connection.

Turns out the CLU-058-1825 chip was a bit big for the heatsink I used. But no worry, I globbed up some thermal compound underneath the overhanging portion of the chip, to bridge a thermal connection with the heatsink.

Paired these LEDs with a HLG-185H-C1400B driver to bring them to 70W each.

The silent 90mm fans do a wonderful job cooling the heatsink with the right 12v power source. One cob was running a bit warm with a 1250mA 12v adapter on the fan but since changing it to a 1500mA adapter it has been running nice and cool.

This was a fun experience building my first grow lights, thank you autoflower community

Here's some pics (btw, these photos are illuminated from the first COB build, they make for great lighting with photography or nug shots)

peace

 

[2Stoned2Care]

Nice little lights bro just one of those has more light output than a mars 300w at half the watts as well good job my friend

 

[dankle]

thanks man that's cool to hear. I was pretty set on getting a Vipar LED lamp until I came here and learned of the wonders of COB.

Only cost a tiny bit more than 200 to build so I guess it was way worth it.

I feel like maybe I could have ran 100W through each of these lights. They don't put out much more than a warm breeze. but they surely are making some girls happy

 

[BigSm0]

Hey dankle nice setup you have there. The clu's will definitely double the output of the epistsr you initially planned on buying watt for watt. Very wise decision! One thing that I hate to bring up but feel I should is the use of kapton tape to hold the les down. The citizen cobs have matching ideal and bjb holders for around 2-3 dollars each. You could also use some thermal adhesive and eliminate the tape all together. As the DIY section here continues to grow we should all carry on the best and safest practices when building high voltage lighting. While kapton is easy to use it can give over time, also does not give a solid enough or even pressure on the cob.

 

[dankle]

is the thermal adhesive the same as arctic silver thermal paste? or is it more of a glue?

I thought silicone might be worthy of holding the chip to the heatsink since it can handle high temps and isnt conductive, but haven't tried it.

will keep this in mind sm0, thanks for the feedback

 

[Balarama]

No, thermal pads are not like a thermal paste. Thermal paste is the only serious option, don't put nothing else between the cob and heatsink, no silicone or whatever. Arctic has two variants of paste, both are good for cobs.i have the mx4 and is not easy to apply but has the best thermal conductivity of all.

 

[dankle]

I used the arctic silver, was moreso thinking silicone on the outside of the cob than underneath, like a dab on each corner. I imagine it would hold well once it cures but dont know for sure.

 

[BigSm0]

Balarama is right. Nothing but thermal paste or thermal adhesive. There are plenty of ways to skin a cat but id use a knife vs a spatula.

 

[ClockworkOrange]

@dankle
Looks Mad Maxish to me- its a like! but they all are right, kill that kapton kirkery!
Would love to see some green underneath.

 

[ClockworkOrange]

@dankle
Looks Mad Maxish to me- its a like! but they all are right, kill that kapton kirkery!
Would love to see some green underneath.