This penlight is equipped with a long-wave UV LED bulb, making it highly effective for assisting in jewelry identification.

The black glass filter attached to the LED emission area blocks most visible light, allowing only ultraviolet rays to be efficiently emitted. Due to its proximity to long-wave ultraviolet light, it can be used for a wide range of applications, including examining diamonds, rubies, alexandrites, and other jewelry, as well as banknotes, gift certificates, various cards, and government-issued documents.

Note: Please avoid looking directly at the UV light when using this product.

• Wavelength: 365 nm
• Power Source: AAA batteries (2 pcs included)
• Weight/Dimensions: 31 g / 142 x 16 x 13.2 mm