The box is a thermostat(most important part) second is a radiant heat panel or under tank heater hooked up to the thermostat.....how you decorate it is up to you..as for light I have under cabinet leds in mine..some companies will wire everything for you so all you have to do I decorate.....these blow any glass tank out of the water...if you get glass your going to end up with a tinfoiled lid paper taped to 3 of the sides and misting 2 times a day. Unless your living in Florida this style of tank towers over a glass one.

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