How Many Watts Does A 3 Lamp T8 Fixture Use

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.

How many watts does a 3 lamp t8 fixture use.

A fixture with a t8 ballast must use a t8 bulb etc. It may be expected that the electric power needed to operate a 32 watt t8 fluorescent lamp will be 32 watts. 89 watts 2 x2 u shape lamp 140 watts 2 x4 3 lamp 178 watts 2 x4 4 lamp. Multiply the fixture s wattage by its hours of use.

Ballast 56 32 3 lamp standard f32 t8 w elec. 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. The t stands for tubular and the number indicates the diameter in 1 8 of an inch. However this designation is simply the nominal power of the lamp.

Well your existing fixtures use about 59 watts each. 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. Here are the fixture wattages that we typically use. 1 lamp standard f32 t8 w elec.

Lamp diameter is determined by ballast type. Designed to replace fluorescent tube bulbs these led tubes are available in 8 and 16 watts which replace traditional 25 watt and 40 watt t8 t10 t12 fluorescent tubes. For instance t8 bulbs are often sold in 10 14 15 17 18 25 28 and 30 watt variations. 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.

Ballast 28 16 2 lamp standard f32 t8 w elec. How much will i save by replacing my t8 bulbs with linear led lighting rep. 20 watt incandescent lamp 1 20 20 40 watt incandescent lamp 1 40 40 75 watt incandescent lamp 1 75 75. You currently have two 32w t8 bulbs in each vapor tight and you are curious how much you would save.

A fixture with a t12 ballast must use a t12 bulb. Typical savings versus other fluorescent bulb types. 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. 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.

If we look at a 12 watt led bulb your wattage per fixture would go to about 29 watts. Ballast 84 48 4 lamp standard f32 t8 w elec. Nevertheless there is a large assortment of t8 wattages available as well.