I have two 15 watt cool white fluorescent tubes on my 5 gallon terrarium. I've been wondering how much it's costing to run these lights (30 watts total) for 14-15 hours. The reason I ask is that I've downsized my entire CP collection down to a windowsill and this particular small terrarium in order to cut down on energy costs.
Does anyone have a ballpark estimate?
Does anyone have a ballpark estimate?