1. Sound Activated Double Neon Tubes China Manufacturer Specifications Product Description:Sound Activated Double Neon Tubes Length of Extension wire: 2M Power Source: 12 V Car Lighter Jack (24V, not suitable) Dimensions: 250 x 125 x 23 (LxWxD) Manufacturer Ref.: 9J8CY4BXZ37J Package Contents NEON TUBES Surface Adhesives Sound Activated Light Sensor 12 Volt DC Connector