Follow other people's advice, spend a little more and get decent lights. There is more to lights than K & Watts. Read about PAR and make an effort to understand what you are doing and what your tank inhabitants need to thrive. If you invest in educating yourself and will be able to successfully keep your tank alive, eventually you will spend the money on good lights that are fundamental to a successful tank. I always preferred to buy what is needed once as buying unsuitable equipment multiple times adds to the cost quickly. Good luck
