I am currently starting work on converting a cabinet into a new home for my cham so i have lot's of questions. One of them is regarding the lighting, i am currently using Reptiglo 5.0 and a Exo terra sunglo in my exo terra viv but my new Viv is going to be bigger 4ft h x 3 ft l x 2ft w . so my question is can i still use these bulbs or do i need to buy new ones if new ones what would you recommend.