Lyyt | Outdoor Static String Light Rubber Extension Cable. Weatherproof rubber extension cable suitable for Lyyt heavy duty outdoor static string lights. Compatible with Lyyt Heavy Duty LED Static String Lights (155.401UK, 155.402UK, 155.403UK, 155.404UK,155.406UK, 155.408UK, 155.410UK, 155.479UK, 155.481UK, 155.494UK, 155.495UK).