Extension cables; Battery cases; Power adapters; Batteries for lighting; Power supply connectors and adaptors for use with portable electronic devices; Backpacks especially adapted for holding laptops and notebook computers; Optical lamps; Power wires; Protective covers and cases for cell phones, laptops and portable media players; Electronic control gears (ECGs) for LED lamps and light fixtures; Ethernet adapters; Tripods; Computer stands specially designed for holding a computer, printer an...