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definition of: /BL

What is special name suffix "/BL"?

This special name encoding reference means: Ballast (usually). Otherwise, on non-Ballast lamps /BL usually means Blister Pack, but, in some instances on filament bulbs might indicate "blue" light output.

On wide spectrum (unfiltered) UV output fluorescent bulbs /BL means "black-light"; who's bulbs are WHITE color when OFF. Fluorescent UV narrow filtered bulbs which are BLACK (dark purple) when OFF are actually /BLB "black-light blue" bulbs.

references for this page: /BL, BLACK-LIGHT, BLACK-LIGHT BLUE, BLACK LIGHT, BLACK LIGHT BLUE

references to this page: /BLB, ULTRAVIOLET