So I've just received my Cyron ht1506e kit and was curious about how "durable" these things actually are. I was curious to know if I could leave these on 24/7 and never turn them off. I know the lifetime says about 50,000 hours (which is about 5 years) but will they actually last that long (or at least a couple of years) with non-stop continuous use? Also, I'm not familiar with how electricity works so if possible, can you explain to me about how much power this system actually uses? Thanks, Dale.