CNBTR Waterproof Black IP66 Plastic Cable Wire Connector Gland Electrical 3-Cable Junction Box with P02-3 Terminal This is compact junction boxes for exterior use. The screw connector is a standard strip block type. Great little outside junction box. Nice tight fit for the waterproof grommets. Great safe for your home and garden or construction plant When you purchase an outdoor light without a sensor. These junction boxes are ideal to extend a circuit.