i need advice on what the best light is to grow ak48

ive been growing ak48 for 1 month now ive only got 2 plants, they are growing quite rapid, ive just put them in a pot each and occasionally water them i just leave them in the garden but the weather is shit in england there is not alot of sun. Therefore i want advice on what light would be best for the plants any advice would be really appreciated.

If you are about to buy a light go with a HPS. How many watts you need is dependant on your set up. If heat wont be a problem get a 600 or a 1000 watt.

i aint got a set up to be honest my wardrobe has a good compartment where i can hang the light from with the plants underneath, i just want the perfect light for it im new to all this,this is my first grow and i would be really happy if it turnt out successful.