DELight 9 ft Flashing Controller for LED Rope Light fits 1/2' (13 mm) diameter rope lights Applicable Range - ONLY compatible with DELight 2 Wire 1/2' Dia. LED Neon Rope Light 8 Flashing Modes - Provides 8 pre-programmed lighting effects to choose, easy to control by pressing the button Certification and Safety - CE certification to ensure safety and quality assurance; Recommended maximum run length for LED rope light connected is 164 ft Widely Used - Perfect for decorating bedroom, kitchen, window