yuuuuh but not at the same time... like since right now the sun stays up for less than 12 hours where im at i bring in my plants to my grow box right before dark so they keep vegging...
so you meant like putting lights with the sun?. i would say thats like putting a match with a volcano...plants can only use so much light and the sun gives out plenty of light already. unless you incorperate Co2 which i doubt you are. i dont think the lights would benifit the plants in anyway in the sun