F20T12BL fluorescent black light bulbs with 24 inch length and 20 watts are used mostly for special exposure and bug light fixtures. The output is in the 350 nanometer output that is consistent for certain applications. Industrial uses include plate exposure for many kinds of processes and the light has a slight purple color when lit. There are many industrial machines that use this type of bulb to spot imperfections or used in some kinds of plate exposure.
Product features:
- 20 watt.
- T12 = 1.5 inch diameter
- 350 nanometer.
- 24 inches.
- Works electrically in any standard F20T12 light fixture.
- A light purple color when lit.
- Used for plastic and varnish curing.
- Often used for bug zappers too.