T12 - Fluorescent

T12 fluorescent light bulbs are 1.5” in diameter. These light bulbs are run on magnetic ballasts that are there to limit the amount of electrical current running through the bulb. The magnetic ballasts are not as quiet or as efficient as electrical ballasts. T8 light bulbs are 1” in diameter and run on electrical ballasts. When compared to the T12 bulbs, T8 fluorescent bulbs have an illumination output that is more efficient. The T8’s slimmer design allows the illuminating gasses to run more efficiently while using less wattage. Both T12 and T8 lighting options are available in a variety of different lengths to meet your aquatic needs. From as short as two feet in length to as long as six feet, there are many choices to customize your own aquarium lighting.