Reptile Systems Ceramic Lamp Holder features a unique 180 degree rotating bracket to provide a secure but versatile fixture for mounting vivarium lamps. Rated for up to 200 Watts E27 screw fitting for compatibility with most brands. Can be mounted horizontally or vertically. Use horizontally with 3U compacts to maximise UVB from body of the lamp. Use vertically with spiral compacts to maximise UVB from head of the lamp. Can be paired with Reptile Systems Clamp Lamps for multiple lighting options. Highly versatile mounting options (Screws not included). On/Off in line switch.