I am having a hard time of working out how many lights I need for my grow space -- H 1.8 mt--w 1.1 mt -- l 1.6 mt . Would this kit do the job . 
kit comprises
6 pcs Cree CXB3590, top bins only
6 pcs Ideal 50-2303CR CXB Holder
6 pcs Graphite Thermal pad(TIM) 1 side adhesive for simple assembly on the COB
1 pc PF-P400CC-C140-DIM, 400 Watt LED driver, 286Vout, Dimmable driver allows the COBS to be run at just under 50 watts, the sweet spot of wall plate efficiency
6 Passive Pin fin Coolers suitable for the 50 watt drive( based on eff% calculations), predrilled and tapped for the Ideal Holder and adapter( you will only need a screw driver not a drill press)140mm x 80mm
6 Sets of Heatsink Mount Bracket to mount your heatsinks to rails
1 Pair 1/8'' Adjustable Rope Hangers
24 pcs M3 6mm screws for the Holders
24 pcs M4 12mm Screws for mounting to side rails
6 pcs of Wago 221-412 Terminal Blocks
15 ft of Black and Red Silicon 600V rated 18AWG Wire

kit comprises
6 pcs Cree CXB3590, top bins only
6 pcs Ideal 50-2303CR CXB Holder
6 pcs Graphite Thermal pad(TIM) 1 side adhesive for simple assembly on the COB
1 pc PF-P400CC-C140-DIM, 400 Watt LED driver, 286Vout, Dimmable driver allows the COBS to be run at just under 50 watts, the sweet spot of wall plate efficiency
6 Passive Pin fin Coolers suitable for the 50 watt drive( based on eff% calculations), predrilled and tapped for the Ideal Holder and adapter( you will only need a screw driver not a drill press)140mm x 80mm
6 Sets of Heatsink Mount Bracket to mount your heatsinks to rails
1 Pair 1/8'' Adjustable Rope Hangers
24 pcs M3 6mm screws for the Holders
24 pcs M4 12mm Screws for mounting to side rails
6 pcs of Wago 221-412 Terminal Blocks
15 ft of Black and Red Silicon 600V rated 18AWG Wire