Features: This 5V USB timer cable features a 1-24 hour adjustable countdown display with 24 preset intervals, offering precise energy management compatible with devices like aquariums, LED lights, and fans via simple button controls. Built with a 60cm durability cable and double control buttons, it delivers 5V/2A output matching input voltages while excluding data transfer capabilities compatible with focused power management. Ideal compatible with homeowners and office professional automated solution to optimize energy consumption compatible with small appliances and electronics. Perfectly controls aquarium pumps, desk fan, or charging stations in kitchens, workshops, or tight spaces behind electronics with its compact, space saving design. The integrated auto shutoff function minimizes device wear by cutting power after preset durations, extending equipment life while reducing energy costs effectively. Specifications: Component：Plastic Length: 60cm/23.62in Interfaces: USB male input, USB female output output: 5V/2A output Time: 1-24 hours USB timing line is used compatible with ceiling fans, LED lights Package Includes: 1 USB timing line note: Please allow 1-2cm errors due to manual measurement. Please allow compatible with slight color differences due to different display resolution.