Electronic Impulse Relay Latching Relay Memory Relay GRM8-01 AC/DC12V-240V Product Description About this item Voltage Range:AC/DC12V-240V Output:GRM8-01=1SPDT, Relay Control Range: Relays can be controlled by buttons from several locations can replace three way switches or cross bar switches thanks to control by buttons (un-limited number,connected inparallel by 2 wires), installation gets more transparent and faster for mounting. Relay Status:Its working status is indicated by the LED indicator. Product Size:Ultra-small size, only 18mm width, 35mm rail mounting.