Fluorescent Light Fixture Sizes

Fluorescent tube sizes guide.

Fluorescent light fixture sizes.

In a 120 volt circuit you add up the total wattages of the light fixtures on that circuit and divide that by 120. There are 4 different fluorescent light options. The t stands for tubular and the numbers are an index for the diameter in inches of the tube. With lighting fixture circuits you have to take into consideration the voltage capacity of the circuit and the wattage of all the lighting fixtures that run through the circuits to get the recommended wire size.

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. Fluorescent bent lamps come in a few different options. Southwire industrial 1 light antique brass outdoor weather tight flushmount wall light fixture. Most tube lighting will have its size mentioned on an end of the tube.

Lumen output you see a lot of high output t5s used in warehouse fixtures. You ll also see them in over the counter lighting shelf lighting or cubby lighting in retail spaces because of their compact size. For example a 20 inch diameter foyer light would be ideal for a 10x10 foyer. T4 t5 t8 and t12.

A good rule of thumb is to add up the width and length of the foyer in feet to find the ideal diameter or width of a light. 80 means a cri between 80 and 89 and so on. This lamp is 12 8 1 5 inches in diameter. To find an ideal height for a foyer light take the room s height then multiply it by 2 5 and 3 which will give you 2 numbers for example if your room has a 10 foot ceiling.

Because of their energy efficiency and light output i e. Bi pin bulbs use a conventional ballast and starter unless the light fixture has been coverted to use an led replacement for a conventional fluorescent bulb a step that can be taken if the ballast is a newer electronic type. Diameter in eighths of an inch. This lamp is shaped like a tube.

Sizes and types of fluorescent lights.