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Is there any benefit with running 6 x Bs in parallel on a 2100ma to 6 x Bs in series on a 1050ma? Looks the same to me, but series wiring is safer? If you ran 3 x Bs on a 2100ma you'd get the same 300w but less ppfd because the light's not spread as much, as opposed to 300w over 6 cobs on a...

Would fit 3 Cs on a HLG320-1400, the chips would be running at over 100w each? Is it the higher the voltage the more u can push them? Wouldn't u need a bigger heatsink than the type B n D running them at 100w?

Looks like the B=52v, C=69v, D=37 https://www.rapidled.com/vero29/

Yeh i'm mooching Alibaba Jack, out of the country until mid Nov' so looking at 2 months until 12/12 so have time.

Looks pretty lightweight that heatsink Jack, not an ideal size though. 4ft lengths of that in maybe 6 -7inch width would be great, with 4 or 5 cobs on, 2 x 120mm cooling fans.

O Oh ok says £90 on that RS link for the 4ft length...30s superb, would definately cancel out the 140mm pin sinks. This the same sink? http://uk.rs-online.com/web/p/heatsinks/8805960/

Lo Looks good that build Jack. What voltage Vero29s do you run? I'm a noob to be honest Jack and just following Growmau5 n Greengene's tips. You paying £90 for a 4ft heatsink? Guessing the supplier would do them between 60-70. Will download skype n give you a toc toc Jack, cheers buddy.

I was just thinking of amps draw really Jack, 2 x HLG 320s 1050ma would run 12 Vero29s for 650w approx. What driver are you using to run 3 at 300w? That would half my Cob bill...

Brilliant Jack, thank you!

It comes in 4ft lengths Jack? A 4ft length can handle 4 Vero29s at 50w each?

0 Yes send me a link to the ones you use, cheers. I'm browsing Alibaba now, first 140mm pin heatsink supplier i came across was $10 a piece, beats RapidLED's $19. Looks exactly the same, will have to delve further.

He Hello Jack, I want to build 12 lights encorporating 12 x Vero29s for 600w in each light. I don't fancy sourcing the 140mm heatsinks from the US though, it's a lot of weight. Do you know of a UK supplier of heatsinks that'll do the job?

Anybody know of a UK supplier of Pin Heatsinks which will cool the Vero 29s driven at 50watts? Don't fancy the shipping cost of 144 x 140mm heatsinks from RapidLED or similar from the US...be quite a bit of weight.

Looks very decent this kit, and not too expensive. Wonder about the boards though, are they the 200w boards trimmed down to 125w? Hope they're not just doing kits n full fixtures...the weight of the drivers makes sending to the UK not affordably sensible, can source them here...need the parts...

Hope GM doesn't let us down...I ain't paying 3 grand for a light...back to the COB's...

Looks like Chilled have removed all DIY kits/parts from the website...not sure if it's temporary or whether they're discontinued. Back looking at COBs it is then...

It's like the 3 of them are ganging up on you buddy, and i agree that they've shown no examples, just sounding childish and nasty. I wouldn't succumb to their taunts, you're wasting your time...

Wow nice thread...I've had no dealings with either company so stand impartial and unbiased. To be fair, out of common decency some evidence of wrongdoing or unprofessional business practice should be presented if someone is publically slandering a company, no matter how big or small the company...

Only in the mellow headed world of cannabis would a snitch like such survive. If it was mafia territory with the white shit, he'd be a gonner...

Does that GML light have the QB304s in it or did i hear the boards were 400+? What's the time on 60 x 304s? Everytime i look they're sold out... *sorry that was for Stephen or Robin.