POWERplus™ Firefly Wind Up Powerful LED Light is a wind up dynamo and rechargeable 16 LED multifunctional light. Due to the integrated hanging system you can easily hang the light wherever you want. You can also use the magnetic base. Simple place the product on a metal surface and your light will stay firmly in position. The Firefly has two settings when using the 16 LEDs. One normal brightness and a second high brightness mode. The Firefly is also a warning light. With the extra 3 red LEDs you can select 2 modes: All 3 LEDs on or 3 LEDs flashing.