Hello Kitty Neon Painting Black Light Fun for Kids - DIY
- 8 years ago
We show Hello Kitty - Neon Painting - Black Light Fun for Kids Youtube Review Video - DIY idea for birthday party and school too ...
A black light, also referred to as a UV-A light, Wood's light, or simply ultraviolet light, is a lamp that emits long wave (UV-A) ultraviolet light and not much visible light.[1][2][3][4] The lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV,[3] so the lamp has a dim violet glow when operating.[5][6] Black light bulbs which have this filter have a lighting industry designation that includes the letters "BLB".[3][5]
A second type of bulb, which is also called a black light, produces ultraviolet but does not have the filter material, so it produces more visible light and has a blue color when operating.[3][4][5] These are made for use in "bug zapper" insect traps and are identified by the industry designation "BL".[5][6]
Black light sources may b
A black light, also referred to as a UV-A light, Wood's light, or simply ultraviolet light, is a lamp that emits long wave (UV-A) ultraviolet light and not much visible light.[1][2][3][4] The lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV,[3] so the lamp has a dim violet glow when operating.[5][6] Black light bulbs which have this filter have a lighting industry designation that includes the letters "BLB".[3][5]
A second type of bulb, which is also called a black light, produces ultraviolet but does not have the filter material, so it produces more visible light and has a blue color when operating.[3][4][5] These are made for use in "bug zapper" insect traps and are identified by the industry designation "BL".[5][6]
Black light sources may b