Power on for 3 to 10 minutes when Lights Off (Dark Period begins).
Use during lights on is not recommend as it can cause stretching.
Lamp Holder/Light Sockets compatible with PAR 38 bulb
Under normal conditions it can take up to 2 hrs to change Phytochrome state from Pfr to Pr. Flower Initiator helps change Phytochrome state from Pfr to Pr within minutes. This helps finish the flowering cycle faster and also allows for a 13/11 cycle.