Grow box lighting can vary a lot, but it is by far the most important part of the hydroponic grow box system. Without lighting, you have no plants. During your cloning and vegetation stages, CFL or MH bulbs are used to promote fast and strong growing. These lights produce a very white/blue light.
During flowering your lighting needs to be switched over to a more orange/warm light. Plus, the timing of your lighting needs to be changed to a 12/12 hour cycle so that your plants know it's time to flower. The best light for this stage is an HPS light. click here