Metal silver dynamo light with illumination function. - Type: Dynamo light - Material: Metal - Color: Silver - Accessories: Wiring - Function: Illumination function This is a block dynamo that was used for about 4 years. The light was attached to a mount that looks like a gun turret. The generator made a loud noise, possibly due to poor contact. I am selling it because I switched to a CatEye light. There are patterns of what looks like dirt, but it was working fine before I removed it.