[Size and Packing List] The external size of the junction box: is 4.5" x 1.6" x 1.1"(L*W*H)Terminal block current: 17.5A. Terminal block voltage: AC 450V. packing list: 8 junction boxes + 8 three-position terminals + 32 screws + 16 waterproof rubber rings. [IP65 Sealed Waterproof Box] Electrical junction box has all passed international certification, connector shell mold and waterproof layer in one piece, silicone waterproof sealing ring and copper screw holes can provide excellent waterproof, rain, dust, snow, oil and other comprehensive protection. [PA66 High-quality Material] Our waterproof junction box is made of high quality PA66 nylon plastic shell, more durable than PC material, high and low temperature resistance, V-0 flame retardant, working temperature: -40°C ~ 105°C, longer service life in harsh environments, will not crack, gives you full protection of the Cable Line. [Easy Installation] The project box can be installed horizontally and vertically