i added a cfl for side lighting last night and left it hooked up to mains so it didnt turn off with the hps! one week into flower should it matter too much? only 1 hour before lights back on just gonna go straight thru...
well thats only 2 plants per light but your only going to penetrate about a foot or two then anything further than that wont get enough light. i seen a 1000w on a light rail with ten BIG plants in a row!
yeah no worries i have a home-made reflector with a 12v exhaust 80mm fan and an even smaller fan blowing around in the cupboard. you really dont need a cooltube with a 150 my plants are 4 inches from the light!
i have a 150 in a cupboard 2.5'w x1'd x2.5'h i made a reflector that shapes into a 80mm duct with a 80mm PC fan on the other end and a small PC fan running off a phone charger for air movement inside and my temps are 22 but it is winter here.