Try looking in to T5 lighting solutions. They are the best types of lights you can get for the price. If you want expensive lighting that can support anything, depending on the depth of your tank, try looking in to Metal Halides. You can find some MH
lights for a decent price, but the majority i've found are decently expensive. You can try VHO
's too.. but they don't stand up to T5 or MH
. You can also look in to Power Compact lighting which is another alternative. Only these lights tend to be less powerful than the other options, and depending on the bulb manufacturer, they need to be replaced every 6-months. Compared to T5' which usually need to be replaced every 9-12 months, and that goes for MH
as well. The VHO
's depending on the bulb as well, can last up to 18 months. But like i said, the life of a bulb really depends on how well it's made, but those numbers are the norm.