i have two lights on the two plants one is a floro tube style closer to the blue spectrum but im unsure exactly what it is the other is a amber colored aquarium bulb but thats recent, before that they were on a window sill facing north west, i repoted and put them under the lights they seem to be doing better already, the 14-14-14 the plants are in a veg state and arn't yellowing or curling so i think im ok on the nuets. i also just staeted them on a 20-4 light sched 20 on 4 off