Lighting

We will soon be getting another100 gallon corner tank the one we have right now we will just keep fish and live rock. We have some coral in there but have lost quite a few because we just have 4 50 50 bulbs. The other tank will be a reef tank and we would love to put in elegant corals, bubbles mushroom polyps and so on (alot of them require alot of light) We want a hood my husband does not want any lighting hanging from the ceiling. What would be a resonable lighting system that won't cause alot of heat where we would have to get a chiller?
 
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