Features:
The black inspection tube is made of blue-black glass, and the inner tube wall is coated with phosphor. The light generated by this type of light is only radiated in the ultraviolet wavelength range of 300-400 nm, and its center value is 365 nm, which can invisible ultraviolet light. Radiation is converted to visible light, the so-called fluorescence effect, so they are suitable for all applications involving fluorescence analysis.

Specification:
Type: Ultraviolet Bulb
Emitting color: Violet
Base Type: E27
Voltage: 220V
Wattage: 15W/20W/30W/36W/40W
Wavelength: 365nm
Material: Black Glass

Application:
1. Appraisers use them to detect the authenticity of antiques. There are many pigments that now contain phosphorus, which glows under black light, while most ancient pigments do not contain phosphorus.
2. Maintenance personnel use them to find invisible cracks in the machine - by injecting a small amount of fluorescent dye into the fuel supply and illuminating it with black light;
3. Law enforcement officials can use them to identify the authenticity of money. The United States and many other countries have used an invisible fluorescent strip on their large denominations, which are only shown under black light.
4. Forensic scientists use them to analyze the crime scene. In order to capture fingerprints, for example, they are usually sprinkled with a fluorescent dye under a black light.
5.Capture of insects,insects to have a special interest in this light