Working voltage:Button Cell, AA/AAA Battery, DC1.5V~24V/AC 110V-240V power Functions: Constant light, ... ,Sound sensing Product's Name: 2032 Battery InverterModel: PYL-ELI-ITB2Product Name: 2032 Battery InverterBattery:2032 Battery*1pcs(=3VDC)Size:47MMX23MMX9MMFunction:Constant light ... both or choose one from both. EL Driver,EL INVERTER(CR2032 Battery Inverter)