# How many watts is a 4 T8 bulb?

## How many watts is a 4 T8 bulb?

32-watt
ANSI considers the 4-foot, 32-watt T8 lamp to be a rapid-start lamp, but it is commonly operated using an instant-start circuit in which the two pins on each end of the lamp are electrically connected or shunted together.

How many volts does a T8 ballast put out?

The ballast it use on a 4 lamp fixture and has 2 yellow, 2 red, and 2 blue output wires to the bulbs. one,.. the open circuit voltage is much higher than the standard resdentail voltage is they are typically 300- 500 volts range depending on the manufacters design is.

How much power does a ballast put out?

They consume eight to 10 watts when operating with the lamp in the circuit. The ballast will consume about four watts when the lamps are removed although the ballast is still energized. Electronic ballasts start and regulate fluorescent lamps with the use of electronic components.

### How many Watts Does a T8 light bulb use?

For fluorescent bulbs, the number after F tells you how many Watts; a F17T8 is a 17 Watt fluorescent T8 lamp. A common T8 bulb is the F32T8 which uses 32 Watts of power. The wattage for LED tube lights varies depending on light output as well.

What is the difference between T12 and T8 bulbs?

While both bulbs come in standard lengths, commonly 4 feet, the designation of 8 or 12 refers to the difference in the diameter of the bulb. T8 bulbs are 8/8 inch (a full inch, in other words), while T12 bulbs are 12/8 of an inch in diameter — 1 1/2 inches.

What is the difference between a T5 and a T8 flourescent bulb?

Difference Between T5 and T8 Fluorescent Light Bulbs T5 and T8 fluorescent tubes are often used for ambient lighting in commercial areas such as offices. T5 fluorescent light bulb is a newer technology than T8. T5 fluorescent light bulb has an efficiency of about 100 lm/W . T8 fluorescent light bulb can reach about 90 lm/W luminous efficacy .

## What is the difference between a ballast for T12 and T8?

T12 and T8 lamps also differ on the ballast that they are operated with most of the time . T12 primarily run off a magnetic ballasts and T8 bulbs operate on electronic ballasts. That’s not always the case as sometimes people changed their T12 ballast to be electronic years ago.