What is the difference between t8 and t12 fluorescent light bulbs?

What is the difference between T5, T8 and T12 lamps? Fluorescent lamps, or fluorescent linear tubes as they are also known, are categorized according to their wattage, shape and diameter. The "T" in T5 indicates the bulb is tubular shaped, while the "5" denotes that it is five eighths of an inch in diameter.

Herein, can you replace a t12 with a t8?

you have to remove the ballast- as most t8 tubes have an electronic one inside. If you put them in t12- you will burn the bulb up and they will work sporadically before they die. Also the fixture gets blackend. You must use non shunted lamp holders.

Can a t8 LED replace a t12?

The plug and play ease of this TLED bulb allows a direct replacement for your T8 or T12 connections, with no replacing or rewiring of lamp holders required. The LED bulb can operate in existing fluorescent fixtures with ballasts that have a 2-pin G13 connection.

What does t12 mean in fluorescent bulbs?

A T8 lamp (on the right in the figure below) is eight-eighths of an inch, or one inch (2.54 cm), in diameter. Both T12 and T8 lamps use the medium bi-pin base, which allows T8 lamps to fit into the same luminaires as T12 lamps of the same length.

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