This Xenide 20/ 25w UV replacement lamp increases the UV output of your AEX20-EP or AEX25-EP HID flashlight. Used with the AEX/365UV black lens filter, UV output is increased. Protective eyewear should be worn when using the HID UV replacement lamp to protect against eye damage. Uses include tank & paint booth inspection, as well as aerospace applications. Used with the AEX20-EP and 365nm black glass filter it is the only HID portable blacklight for explosion-proof applications.