Material: Brass housing Surface: Matt finished Battery type: 4 x AG13 button cell Continuous runtime: 60 hours Bulb type: 3 white LEDs Max Output: 40000-45000MCD Operation: ON/OFF IC switch Size: 14(H) x 171(L) mm Weight: 54g (with battery) Feature: 1. 360 degree flexible neck 2. Convenient metal clip for hanging on non-metal objects 3. with magnet on the bottom