Have 4 HLG QB 288's , 2 Rspec & 2 Bspec . If wired in series can both R & Bspec boards be on same driver ? If not then I'd need 2 HLG 240's with onboard dimming / 1 HLG 480 with onboard dimming if all can be on same driver . Double slate heatsinks for boards . A pair of 240's , one mounted each heatsink . Single 480 need it's own heatsink or mount remotely ? Figure 500W out the wall , run @ 50% veg & 75% flower . Last a good while run soft I think .