Tracer Products' Tracerline TP-8627 EZ-Ject Leak Detection Kit saves technicians time and trouble when trying to pinpoint leaks in air conditioning and fluid systems. The kit contains an Opti-Lite high-intensity - a 6-LED blue light flashlight that is extremely powerful. It also has the EZ-Ject multi-dose dye injector - a fast and easy way to add fluorescent dye to multiple A/C systems. The TP-8627 also contains a 0.5-oz universal A/C dye cartridge; a 1-oz bottle of Dye-Lite All-In-One dye for oil, fuel, ATF, power steering and hydraulic systems; a 1-oz bottle of Dye-Lite coolant dye; an 8-oz spray bottle of Glo-Away dye cleaner and fluorescence-enhancing glasses. Everything is conveniently stored in a sturdy plastic carrying case.