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I've already got a frame in my tent holding a lighttube fitting central - being pulled out of square because of ducting. As my tent is only 60cmx60cm it needed to be central. I'll repurpose that frame to position the COB/heatsink engines. They'll be 15cm from from each edge, each sitting in...

I could get away with two but I'd have to run them flat out... I'd rather have 4 and be able to tune things down... I'd recommend this Youtube playlist - this is what started my understanding... https://www.youtube.com/playlist?list=PLFeGgzTAA8vkzWTM7SWiQPlYAhNe3GMGi

Totally agree - no brainer - but another brain is always better than my one! :hug:

Worth watching the entire series...

Just about to start installing a 200w 4 Cree COB LED setup in my small 60cmx60cm grow tent. Quick question... How should I arrange the lamps - each centred over it's own "30cm square" quarter or will that cause a problem with a hotspot at the centre?

Boots will have it - you just want alcohol wipes or acetone (used for cleaning nail polish). It's not desperate - you just want the metal that the heat sink material is going to sit on is complete clean. Rub with very fine wet and dry or wire wool and wipe the surface with a clean cloth and...

Just picked up alcohol on ebay - http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.X142123665092.TRS0&_nkw=142123665092&_sacat=0

This is sorting my mood at the moment...

I've bought a shed load of bits to complete the build, screws, wire, fans, pots (for light and fans), fan junction box, 3a and 15a connection blocks, pot knobs, aluminium sheet to mount stuff with, tap and die set, HSS drills, nuts, bolts, washers... My post lady is going to love me over the...

I've ordered a pot and resistor along with loads of other sundries from ebay today. Entire build is going to come in at about £300, plus framing material which I've already got.

Just ordered a CXB359-LHA36VKIT kit - driver from Mouser and will be doing active cooling using 4 Arctic Cooling Alpine 64 Plus 100w CPU coolers. Will update when I've got all the bit assembled cause I'll be after some advice on wiring up a pot to control dimming...

Thanks for the input guys... Just ordered a HLG-185H-C1400B driver from Mouser :clap: Next will be working out the pennies to buy the Cutter kit next...

Luckily my grow is only 60cm square - 4 COB's will make it sing!!!

Just found this online - would that work??

I'm interested in buying a Cutter CREE COB kit, but the weight of the driver and heatsinks pushes the postage upto to excessive amounts. I'm looking at this kit - http://www.cutter.com.au/proddetail.php?prod=cut2905 - as there is no heavy driver/heatsinks included. Can anyone suggest a UK...

As with most UK growers, sourcing CREE quality grade lighting is a nightmare - we have to contend with huge postages costs that puts it outside of the reach of casual growers. The two things that hit the pocket are the heatsinks (820g each) and the drivers (weighty!). Drivers can be sourced in...

Wouldn't something like 40amp electrical cabling do - like a cooker is connected with? That can be bought at your local DIY store?

If I went for two CREE's what temperatures would you suggest to give me a good compromise between veg and bloom. I'll source the heat sink and driver locally as they will be the high ticket items in postage terms - UK based. Looking at http://www.cutter.com.au/products.php?cat=Grow+Light+Kits...

http://img.weiku.com/a/001/764/high_temperature_electric_wire_of_connecting_line_UL1015_18AWG_5742_1.jpg

I'm running a micro grow in a 60cmx60cm tent - would I get away with two COBs or would I need more? I'm in the UK but would be happy to buy the light engines from you and purchase a driver locally (to save on postage).