hps is not widely used as a vegative growth light as it doesnt hold the right colour spectrum(red) but it can be done with a hps so dont worry might jus take a lil longer! the timing for vegging should be 24/0 if you want to give the plants a break which i recomend! have 18hrs light 6 dark jus make sure your grow room has gd air circulation as it could burn the plants an stress them out somewhat!! when the plants reach an average of around 12" - 17" depending on strain you can switch the light cycle to 12/12 for flowering which the hps is great for! gd luck!
D3STRUCT Reviewed by D3STRUCT on . 250w seedling cycle? i have just started my third plant and i dont know how long i should keep it under my 250w light for as this is the first time i have used it, my plant is about an inch tall and about 2days old(from when it came above soil). Also the light cycle times for when the plant becomes bigger. Rating: 5