Spec Sheet Install Manual The OK4500R Open Cap is a low-profile, locking-type photocontrol cap that temporarily takes a light fixture out of service (turned OFF) while leaving other lights in the same circuit energized. Easy to install and remove, the OK4500R helps reduce damage to lighting fixtures by providing a protective shell around the exposed receptacle. Features: Fits standard locking-type receptacles Polycarbonate housing Works for all voltages Seals receptacle without turning lights ON Specifications: Warranty Period 2-Year limited Category Photocontrols Accessories Web RoHS Certification Yes Operating Temperature Max (°C) 70 Operating Temperature Max (°F) 158 Operating Temperature Min (°C) -40 Operating Temperature Min (°F) -40 Product Height (in) 1.5 Product Height (mm) 38.1 Unit Carton Height (in) 3.75 Unit Carton Length (in) 1.75 Unit Carton Weight (lb) 0.148 Unit Carton Width (in) 3.75