johnson grow lights

Hi. I am interested in switching to a gowmau5 style cob setup and was checking out this Johnson cx-16 as an option. Is anybody using this setup? One retailer claims that they use Citizen clu048 and another claims they use cree cxa 2540. Does anyone know which cobs they use?...and which are...

Temp stays 78-82 w/ fan gently blowing into the housing, into the grow space. Humidity approx 40-52%. Never seen temp over 82, never seen humidity over 52%. Seen serious growth in the 'A few days ago' file & 'pre trim' file. Trimmed prob 2 lbs of fan leaves. Upped the nutes to 2x--or later...