40W lighting starter made by Panasonic, white, 12mm in diameter, 3.88cm in length. - Brand: Panasonic - Model Name: FE4PF2X - Color: White - Size: 12mm diameter, 3.88cm length - Quantity: 1 piece - Voltage: 200V - Specifications: P21 I purchased this as a spare, but it has become unnecessary as I switched to LED lighting. Although it has never been used, it has been opened, so please refrain from purchasing if you are concerned about this.