What does the numbering on a fluorescent lamp mean?
Most standard lamps are designated in the following format F32T8 35K. The F meaning that the lamp is fluorescent, the 32 is the lamp wattage, the T designates the shape of the lamp (T = tubular), the 8 is the diameter of the lamp in 1/8 of an inch. A T8 lamp has an 8/8 diameter or one inch diameter. A T12 lamp has a 12/8 diameter or 1-1/2 inches. The last designation is the color of the light the lamp emits in this case 3500 degrees Kelvin. You may see other color designators such as CW cool white, WW warm white, or other numbers in degrees Kelvin. The higher the number the cooler the color of the lamp. The lower the number the warmer the color of the lamp is. What are the benefits of high-output T5 lamps? Switching from HID lamps to HO T5 fluorescent lamps is now a common strategy for increasing energy efficiency in warehouses and other high-bay lighting situations. HO T5s: • Are capable of instant-on and instant re-strike. • Can be used with energy-saving occupancy sensors. • Can be
Most standard lamps are designated in the following format F32T8 41K. The F meaning that the lamp is fluorescent, the 32 is the lamp wattage, the T designates the shape of the lamp (T = tubular), the 8 is the diameter of the lamp in 1/8 of an inch. A T8 lamp has an 8/8 diameter or one inch diameter. A T12 lamp has a 12/8 diameter or 1-1/2 inches. The last designation is the color of the light the lamp emits in this case 4100 degrees Kelvin. You may see other color designators such as CW cool white, WW warm white, or other numbers in degrees Kelvin. The higher the number the cooler the color of the lamp. The lower the number the warmer the color of the lamp is.
