how to






 

Question by  Rlanca (12)

What are some clues on how to tell a light bulb is UVB?

 
+5

Answer by  Bugmann (130)

Look on the top of the light bulb. It should be stamped there in a small circle, or on the end if it is a long bulb. People can't see UVB light, so there is no way to tell by looking at the light it makes.

 
+4

Answer by  Brandon55 (1719)

A UVB bulb should have a label on it somewhere designating it as a UVB bulb. If not, use the serial number and look up the bulb online.

 
+3

Answer by  marktho (56)

Mercury vapor and metal halide lights are used to produce UVB but the tungsten filaments used in the incadescent bulbs only produces heat not UVB.

 
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