I have a new light in my grow box it is 3ft tall 2ft long. 1 ft deep what is the best light for this type of box and also the cheapest way I am using CFL right now but I would like to get better penetration on plants I don't know if I should go LED or another type of light I'm up to any suggestions on brand type of life I just have to make sure that it fits inside the box and leave enough room thank you for all your help