FEATURES: 1.It adopts top-level professional UV chip from Japan of precise wavelength and 20,000 hours' lifespan. 2.UV flashlight has multiple use as below: ◆ Check the leaks for air conditioner and automobile circulatory system ◆ Mark and blood inspection, examination of crime scene. ◆ Treasure and minerals searching, Antique appraisal ◆ Ink curing and glue curing. ◆ Counterfeit and banknotes distinguishing ◆ Gas leaks inspection ◆ Fluorescent reflection of special materials?