What Is A T8 Fluorescent Lamp

The other common lamps are the larger t8 eight eighths inch 1 and t12 twelve eights inch 1 tubes.

What is a t8 fluorescent lamp.

Buy 10 or more 8 37. The t8 bulb s lifetime can exceed that of the t12 while using less energy. Set your store to see local availability add to cart. Fluorescent t8 bulbs have continued growing in popularity since they were brought to the united states in 1981 and have now become the standard in building construction.

This type of fluorescent tube lighting is the most popular because of its high cri and many color temperature options. 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. Limited testing by nlpip found differences between rated and measured light output values. A f17t8 is a 17 watt fluorescent t8 lamp.

For fluorescent bulbs the number after f tells you how many watts. T8 lights are a good choice for an adjustable lighting system because of their color temperature range from a soft yellow white to bright daylight. These are the basic different characteristics of each different fluorescent lamp type that is most commonly used in offices and commercial industrial lighting all across the world. The t12 is 1 5 inches in diameter and the t8 is 1 inch in diameter.

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. An electric current in the gas excites mercury vapor which produces short wave ultraviolet light that then causes a phosphor coating on the inside of the lamp to glow a fluorescent lamp converts electrical energy into useful light much more efficiently. A common t8 bulb is the f32t8 which uses 32 watts of power. A fluorescent lamp or fluorescent tube is a low pressure mercury vapor gas discharge lamp that uses fluorescence to produce visible light.

T8 fluorescent lamps are available with a variety of rated light output values. Even if rated and measured light output values were the same the uncertainties of approximately 1 to 2 would blur the differences between models with similar values of rated. The most commonly available is the t8 bulbs. Philips 32 watt alto linear t8 u bent fluorescent tube light bulb cool white 4100k model 434514 9 85 9 85.

The t12 runs on a magnetic ballast and a t8 operates on an electronic ballast. The t12 is an older generation fluorescent bulb that generates light through electromagnetic induction which is considered less efficient method of creating light compared to that of newer electronic based circuits. Lamps are typically identified by a code such as fxxty where f is for fluorescent the first number xx indicates either the power in watts or length in inches the t indicates that the shape of the bulb is tubular and the last number y is the diameter in eighths of an inch sometimes in millimeters rounded up to the nearest millimeter.