F4T5CW & F6T5CW Fluorescent Bulbs

Originally recorded December 1, 2015.

Testing some small tubular fluorescent bulbs I had laying around. No idea where I got them, it *might* have been a thrift store, but I can't remember. They've been sitting around for some time.

Decoding the reading on a fluorescent bulb:

Typical labeling is of the form FSWWCCC-TDD:

F - Fluorescent lamp. G means Germicidal shortwave UV lamp.
S - Style - no letter indicates normal straight tube; C for Circline.
WW - Nominal power in Watts. 4, 5, 8, 12, 15, 20, 30, 40, etc.
CCC - Color. W=White, CW=Cool white, WW=Warm white, BL/BLB=Black light, etc.
T - Tubular bulb.
DD - Diameter of tube in of eighths of an inch. T8 is 1", T12 is 1.5", etc.

For the most common T12 (1.5 inch) tube, the wattage (except for newer energy saving types) is usually 5/6 of the length in inches. Thus, an F40-T12 tube is 48 inches long.

Видео F4T5CW & F6T5CW Fluorescent Bulbs канала jaykay18