Stylish Penlight For Everyone E19 is a delicate and compact auxiliary illumination too with up to 200 lumens Utilizes NICHIA high CRI LED By using quality LED, E19 reveals the true color of an object. AAA Batteries Compatible E19 is a waterproof penlight that features non-slip housing, easy to carry and use. Serve as Photography Fill Light It can be used for photography or inspection, E19 can reflect the real color of an object. Waterproof & SOS mode Small but multifunction, E19 is waterproof and features SOS mode to deal with emergency. Ergonomics Body Design Lightweight and the non-slip housing allows user to effortlessly hold it tight. Constant Current For Efficiency A constant output ensures the stability of the light beam without flicker. Gold plated spring & Anti-oxidation By using a gold plated spring, the product life of E19 is guaranteed. Ultra Clear Coated Lens Having smooth plated aluminium alloy reflector is the key of bright output.