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UVb?

It might be worth considering HPS if they are produced in your country etc.. avoid import tax

Could this be achieved easier with a model rather than a calc? If you know the emitter angle of the cob/refector combo and you know you grow room dimensions, could you know not draw a model, estimate area of coverage for 1 cob, covert to m2. divide by umol output. Ahhh shit I'm talking bollocks

sorry dude, KB are a company based in china, a few people from here have got cree through them, bit more choice available, slightly better price than RS. delviery might be steep if you only need 2. I'll pm you his emauil

overclockers sell AC A11 fo £6. KB sell cobs cheaper than everywhere else @AP. - Great stuff mate, nice write up. I've been thinking about reflectors for a while... I'm thinking about them seriously know!

I ran 1400 & 1200 about 12" above canopy no problem. you will be sweet with those drivers, best of luck with your build. Have you considered heatsinks yet btw?

okay so if you have an grow room area of 2ft x 2.5ft you have a total area of 5sq ft. 1 vero 29 @ 1400mA is approx 50W total power @ ~ 44% eff. so that means you have ~ 22PARW. rule of thumb is to aim for ~ 15 PARW per sq ft. If this is your only light souce in that area it will be woefully...

whats your target drive current dude? It is pricey, but you have headroom, I (and I expect most others will agree with me on this..) expect you will soon be looking to buy more cobs :P I don't think you can run 1 cob of the racd 150 btw, at least 2.

hello rosswaa, try the RACD 150 1050 :P

cant argue with that, fair play.

FYI - daisy chaining shit electrical practise . don't do it. IF a component fails and the supply is daisy chained everything on that common fuse must be dead to replace the component. fucking ball ache. trust me. Look in any proper panel and components are individually feed and labelled. AP...

So you've recalled the products with death potential? (not having a go although might sound like it) a) in the UK what you have sold is illegal you would be prosecuted under mis selling of goods acts /electrical item not CE marked etc.. BAD b) someone might die. 50mA is all you need, a 110V...

@Greengenes707 -- is this what you mean, both those power outlets are diasy chained; for example; In the picture the far outlet is live 110 / 220VAC? @AP.- DUDE!?!!!?! !

A bit mesh over the fan would stop anything falling in. OR put a note on saying "if than fan stops, the cobs burn" I think your doing a good job dude, don't pay too much attention, people will always find fault no matter what you do!

shout out to; Supra MrFLux SDS Alesh etc..(& others I have forgot, GG, RS, etc..) just for being very helpful and continually providing answers to questions. much love.

America is 60Hz and Eu is 50Hz phone up local dealer and ask, or look in datasheet, will normally say what frequency it can operate at

Don't need a link, just drop GG a message on here if you're interested in a PLC fixture.

Can I run 4 x vero 29 on a meanwell HLG-185H-C1400B == MAX Vo = 143V 4 x vero 29 (1400mA) Vf50 = (37*4) = 148V

Description of the relay: 1. When A1 and A2 (the coil) is energized the contacts will change position. 2. Contact position is always described & drawn in its de energised state 3. Contacts can be in 2 states. Normally open.(NO) or Normally closed (NC) Description of my set up in the picture...

@ 700mA and they look happy @ ~ 6"