Locking Type Photocontrols Shorting Cap No Surge Protection - Locking Photo Controls secure your light settings.Locking Type Photocontrols Shorting Cap No Surge Protection features include: Locking Shorting Cap typically used for testing lamp amp; ballast fixture where twist lock photocell is used UV Stabilized Polycarbonate Cover High Impact Polybutylene Terephthalate Base IP65 Protection While Installed UL Listed Order Qty of 1 = 1 Piece Below is more info on our Locking Type Photocontrols Shorting Cap No Surge Protection