Yeh man wait till u star using the pk ill notice even more of a difference in THC production I've never used any more than 1 light what lights have you got again matey?
600 dual spec in aircooled hood and a 250 red spec ina nromal reflector in a ft x3.4ftx7ft tall room, all white painted ideal really, no heat issues or noffink,. took me time to build. fuk using tenst ther just a pain, for my situation anyways