A black light blue bulb is a special bulb that emits blue light which filters out the white light in the room making the ultraviolet light in the room become visible. (source 1) The black light blue bulbs emit ultraviolet rays that react to the phosphor in the room creating a glow in the dark effect.
How does a Black Light Blue Bulb Work?
Black light blue bulbs have a deep blue purple color glass which blocks visible light and look like regular black bulbs when not in used. They are able to produce the utmost quantity of UV light due to their blocking out visible light. Black light blue bulbs emits a deep, soft purplish light which is not black light but simply a left over visible light produced by the bulb. (source 2)
A black light will make anything containing phosphors seem to glow in the dark. Phosphors are substances that will produce a visible light when exposed to energy. The ultra-violet light emitted by a black light finds these phosphors, and turns them into visible light.
Most black light bulbs are made with a dark glass to block off most of the visible light given off by the bulb, so that only the ultra-violet rays are emitted. (source 3) Once the ultra violet rays leave the bulb, it finds phosphors in the room and the result of the reaction of the emitted energy with the phosphor is illuminating light.
What is the difference between Black light and Black Light Blue?
Black lights and black blue light both emit an ultraviolet light that makes fluorescent substances glow. Whereas black light bulbs emit a black light and some visible light, black light blue bulbs emit a dark blue light and no visible light in the room. Thereupon, the black light blue bulbs are better at blocking and filtering out most of the visible light in the room than black light bulbs. (source 1).
When to use Black Light Blue Bulbs?
If you’re looking for a black light that produces the minimum amount of visible light for an especially sensitive area, black light-blue bulbs are an ideal choice (source 1).
Black light blue bulbs are often used for decoration on special occasions such as Halloween. The bulbs create a special lighting effect for parties and gatherings. These bulbs are also ideal for drama class or theatrical needs.
Availability and Shapes
Black light blue bulbs come in spiral, vertical tube, round, and a straight stick shape and has a number of wattage sizes and are available at buylighting.com, bulbtown.com, and many other stores.
At Bulb Town there are a variety to shapes and sizes to choose from for an economic price. At Bulb town, the circulate shape for black light blue fluorescence is available.
“GE lighting” General Electric Inc.
“light bulb””Black light bulb”