IP66 Weatherproof & Dustproof: Fully Waterproof. Sturdy Clear Cover & Locking Holes Design: Outdoor socket box has a clear lockable cover. The plug can be directly connected from the switch while keeping cover sealed.
eBay
IP68 Waterproof Electrical Connectors. 3 Way IP68 Junction Box. IP68 Waterproof (Up to 4M depth in water for Max 72 Hours). 2 way / 3 Way / 4way IP68 Junction Box. 94V-2 Grade Housing Material.
eBay
Socket Type: Single gang. Safe Usage: Do not attempt to repair or modify the extension lead. If repairs are needed, consult a qualified electrician. Do not use if any defects are found. Plug Type: UK 3-pin plug.
eBay
eBay
SWA Armoured Cable 1.5mm 2,3,4 & 5 Core. Suitable Applications - Underground, outdoor and indoor applications and for use in cable ducting. BASEC Approved.
eBay
Ahigh-quality heavy duty and hard wearing H07RN-F flexible harmonised mains power cable with rubber insulation and chloroprene or polychloroprene rubber jacket.
eBay
eBay
Waterproof and dust proof IP66/68 junction box, anti-UV, sunlight protection and rain protection; UL94 V2 grade fire retardant. FREE PA10 Hex connector included with all IP66 Boxes. These High quality Junction Boxes, are very sturdy and will not crack or fade in the sunlight or adverse weather conditions.
eBay