"How clever these Zoo Med people are! By packaging the light bulbs in a two pack... I don't have to run out to the store every time the light bulb burns out, which is hardly ever! Each bulb lasts a little over 2 1/2 months if you run it 24 hours a day. And they keep the tank warm enough for my ball python. (I use the 75 watt and an under tank heater for his 55 gallon tank.)"
