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http://www.ebay.co.uk/itm/331628650632 Cable Specs Conductors – Tin Coated Pure copper Strands – 24 Strand thickness – 0.2mm CSA – 0.75mm (squared) Min. insulation resistance 20°C (MΩ/km)- 10 Rated conductor temperature- 85°C Rated to 4.5A & 1000VUnshielded & Single Core Price seems to...

In UK, we have single sockets capable of atleast 13A at 240V = 3100W Is there any issue with powering on all at once our 10 250w = 2500w drivers? Drivers would be Manwell HLG 240

Im planning to use BJB holders and wire 1212's in series, however the spec states that the holders require 0.75mm copper cable. spec sheet - https://www.bjb.com/index.php?pid=397936&lid=10 Most here talk about using 18 gauge(1.02mm) losest I can get to 0.75mm is 21 gauge(0.71mm) Im planning...

Datasheet : http://ce.citizen.co.jp/lighting_led/dl_data/datasheet/en/COB_5/CLU048-1212C4_P3551_0216.pdf The Citizen 5th Gen 3000k Below BBL datasheet states that the Typ voltage is 34.6, whereas the 5th Gen selection tool gives a Voltage reading of 36.9 for 1350mA. What voltage should I...

Regarding Citizen 1212 Cobs. in above diagram where the center red = hottest, and moving outwards from there gets colder temps Is the above somewhat accurate? I dont own any chips to test. Thanks!

Ive read multiple times now that MeanWell are conservative with there ratings, but I want to make sure before I puchase. I was planning to run each 1212 at 36v * 1350A = 48w, however a freind here mentioned thats its really pushing the driver and recommneded only 4 * 50w per 1 HLG240w. The...

I came across some different manufacturers other than Ideal and BJB, so thought some others might be interested. Some of the spec sheets look like they may have not been updated but perhaps they might also be compatible with the current COBS we are using... TE Whole range -...

I need something like this for my room, have tried googling but cannot find anything.

I need something like this for my room, have tried googling but cannot find anything.

Wondering whether the best option would be to just use the ultra violet fluorescents...

BJB Data sheet : https://www.bjb.com/index.php?pid=397936&lid=4 The BJB 47.319.2033.50 is compatible with the CLU048 Series along with some others. However im planning to run in series 5 cobs per HLG-240-C1400 driver at 36v 1350mA, = 6.75A. Should this be avoided? I am assuming that a...

I am wondering if anybody can comment on this from experience within your own grow rooms. Roughly what percentage of heat in comparision to HPS would these LEDS give out when driven at 50w per cob? I am assuming from reading that they run less hot, but would hoping for half the heat as a HPS...

I see in most builds people use Ideal holders, however if enough care is taken (dont screw in too tight), could we use those 2 holes to screw into the heatsink? If not, what are the holes for? Also, does BJB do a holder for the 6th Gen 1212's? The reflector-type-lip design looks more efficient...

Meanwell made a ELG version, which apparantly was created to be price competitive... More info here - https://www.led-professional.com/products/led-driver-ics-modules/mean-well-introduces-new-price-effective-high-voltage-high-power-led-power-supply-series The ELG range pretty much mirrors the...

I am planning to buy this or another worm product to mix in with compost and some other stuff. Has anybody used this brand before and if so what is your view on it? Thanks

If I put 10 x 250W meanwell drivers running at that full capacity(2500W), would they output noticeable heat in my grow room? Ive read about the option of running the drivers out of the grow room, but I often do not see it being done as most people just mount the drivers on the cob fixture. Or...

Wondering the quality of these drivers, as they appear to be around half the price of MeanWell's Alibaba Link - https://msdled.en.alibaba.com/product/60606672389-804160042/DALI_drimmable_led_driver_200W_24V_constant_voltage_led_driver.html I have seen them used in some Vero 29 builds...

I want to drive 40 Vero 29 C - 770mA 65v - 50w. I have been looking through the meanwell list http://www.meanwell.com/product/led/LED.html It seems alot of the constant voltage drivers above 200W all go up to 54v. Whilst the Constant current ones are either locked at 700mA or 1050mA. Its my...

I am planning to get either 40 x Vero 29 3500k 80 CRI and run each at 50W per 1.25 sq ft - giving 192 Lumens per watt. or 50 x Citizen 1212 3500k 80 CRI and run each at 45w per 1 sq ft - giving 160 Lumens per watt total space for these is 5x10 ft, so 50 sq ft. Would either of these builds...

Which is considered better for COB useage? I am not concerned if one is harder/more time consuming than the other to apply.