Spiderfarmer SF4000 is a great light and under $500.00. It will be plenty of light for your 5x5. A timer for your light, required for a successful grow. I suggest you go with Jack’s Nutrients for fertilizer. Its a quality nutrient at a great cost per gallon of nutirent solution. Ac infinity S-6 inline fan with Controller 67 to control air exchange. A/c Infinity carbon filter. A must for scent control. The carbon in AC Infinity filters is Australian carbon, which is the best Carbon on planet Earth. Oscillating fans for air movement. Mychorrizae for your planting medium or soil. Then quality water and the best seed you can procure. Dont waste your time with swag seed, because you have no grow experience, and think you will fail the first time. Instead, buy books, like Ed Rosenthal’ Cannabis grow library!!! Weed is easy to grow when you have the knowledge of the crop your growing!! Thats what I did!! My first grow! Boom!! Ahhhhh!!