The Next Generation of Cordless UV Leak Detection. A professional dye delivery system utilizing the Phazer Lite - leading-edge technology with the use of 18 True-UV LEDs - a superior performace over Blue LEDs to fluoresce dyes brighter than ever! LEDs do not produce heat making them safer to use for continuous operation.- Spotgun Jr. Injection gun system with the new Phazer Lite with 18 True- UV LEDs to illuminate all UV leak detection dyes,-Services up to 20 vehicles -Kit Includes: Spotgun™ Jr. Injection gun with R-12 and R-134a adapters and hose, UV-Phazer Light with 18 True-UV LED's - a powerful beam of UV light that illuminates UV dyes brighter than ever, 2 Universal A/C 1 oz. dye cartridges, Hybrid Safe UV A/C Dye (SAE-J2297 certified & OEM approved), UV enhancing glasses, Durable storage case, Dye Cleaner and 4 (AA) Batteries