How Many Watts Does A 3 Lamp T8 Fixture Use

The most popular wattage for t8 light bulbs is the 32 watt type which is intended to replace older 40 watt t12 bulbs.

How many watts does a 3 lamp t8 fixture use.

Multiply the fixture s wattage by its hours of use. For instance a double tube fixture with a total wattage of 80 watts two 40 watt tubes in operation for 240 hours per month uses 19 200 watt hours of energy. 1 lamp standard f32 t8 w elec. For instance t8 bulbs are often sold in 10 14 15 17 18 25 28 and 30 watt variations.

Ballast 56 32 3 lamp standard f32 t8 w elec. It may be expected that the electric power needed to operate a 32 watt t8 fluorescent lamp will be 32 watts. Lamp diameter is determined by ballast type. Well your existing fixtures use about 59 watts each.

Ballast 112 64 1 lamp f34 f40es t12 w eemag ballast 42 2 lamp f34 f40es t12 w eemag ballast 67 3 lamp f34 f40es t12 w eemag ballast 104. However this designation is simply the nominal power of the lamp. 20 watt incandescent lamp 1 20 20 40 watt incandescent lamp 1 40 40 75 watt incandescent lamp 1 75 75. If we look at a 12 watt led bulb your wattage per fixture would go to about 29 watts.

2 4 32w t8 lamp hp elect ballast 1 2 3 265 fixture description number of lamps b lamp wattage c input wattage d t8 continued 3 4 32w t8 lamp hp elect ballast 1 3 32 93. Here are the fixture wattages that we typically use. Figure 1 shows the range of values for rated initial light output that are presently published for 121 lamp models by nine manufacturers for different correlated color temperatures cct. 89 watts 2 x2 u shape lamp 140 watts 2 x4 3 lamp 178 watts 2 x4 4 lamp.

Because fluorescent lights are often installed in high ceilings in commercial sites there are additional savings because the frequency of changing bulbs is greatly reduced. A fixture with a t8 ballast must use a t8 bulb etc. A fixture with a t12 ballast must use a t12 bulb. The amount of light generated by 32 watt t8 fluorescent lamps varies considerably from one lamp model to the next and from one manufacturer to another.

The t stands for tubular and the number indicates the diameter in 1 8 of an inch. The relevant american national standards institute ansi document states that the rated lamp power is 32 5 watts under standard test conditions ansi c78 81 2005. Ballast 28 16 2 lamp standard f32 t8 w elec. You currently have two 32w t8 bulbs in each vapor tight and you are curious how much you would save.

The most common types are t12 t8 and t5. Nevertheless there is a large assortment of t8 wattages available as well. Typical savings versus other fluorescent bulb types.