Now in Pev Grow you have these electronic lighting kits for indoors crops. You have two brands of bulbs with different powers and spectra so that you can cover any need you have.
The particularity that distinguishes magnetic lighting kits from electronic ones is that they include among their components an electronic ballast from Bolt brand, this helps to maximize the ratio watts / lumens with the lowest energy consumption, in addition the low emission heat from these reactances makes temperatures in the crop space don’t rise reducing the probability of a pest can emerge.
Another advantage is that in case of blackout or voltage drop, the electronic ballast will keep the light off until it is ready to re-ignite, thus avoiding the rapid deterioration of the lamp.
Remember that the bluish / white spectra is suitable for the growth phase and reddish / orange for the flowering phase. Dual spectra bulbs combine both and you can use them along the whole cycle.
Recommended power in reference to the crop space:
250w ... 60x60x120cm
400w ... 100x100x200cm
600w ... 120x120x200cm.