YETOR Waterproof Connector 4 Wire,16AWG Male Female Plug LED Connector Witch 4Pin Waterproof Connectors IP68 with 20CM Extension Cable for Indoor/Outdoor LED Strip Lights.(5Pairs) - - Amazon.com
T-tee Waterproof IP68 Connectors 3 Channels 2/3/4/5 Core With Screw Locking Wire and Pressure Connector Apply For Single Color/RGB/RGBW/Addressable LED Strip Lights [WC-ACCESSORIES-002] - $7.48 :
Amazon.com: Eonvic SP21 Aviation Connector 4Pin Panel Mount Aviation Plug Socket Waterproof IP68 Connectors with Cap Panel Mount for Industrial Device Power Signal (1PCS-SP21 4pin) : Electronics
Amazon.com: SD20 4Pin Waterproof Connector, IP68 Circular Power Connector LED Power Cable Adapter Heavy Industrial Plug Socket (4pin, Panel Mount) : Electronics
HangTon HE21 4 Pin 30Amp Waterproof Wire Connector Male Female Plug Socket for Outdoor Marine LED/Power/Lighting Equipment: Amazon.com: Tools & Home Improvement
BTF-LIGHTING 4 Pin Electrical Metal nut Connector 22AWG IP68 Male Female Connector 7.87in/20cm Extension Cable for Car,Truck,Boat,Indoor/Outdoor LED Strip Lights/String 15mm Metal Nut Small Size - - Amazon.com
Amazon.com: SD20 4Pin Waterproof Connector, IP68 Circular Power Connector LED Power Cable Adapter Heavy Industrial Plug Socket (4pin, Panel Mount x 2set) : Electronics
Waterproof IP68 2/3/4/5/6/8 Pin 20cm Male and Female LED Strip Cable Connector | eBay