Features Reliable and Stable: High-quality materials ensure reliability and safety, providing a long-lasting power supply solution. Voltage Stability: Maintains stable voltage output, ensuring consistent performance for your LED strip lights and other devices. Versatile Use: Ideal for household appliances, offering reliable power for various electronic devices. Universal AC Input: Supports a wide range of input voltages, while outdoor convection cooling enhances efficiency. Full Load Burning Test: Rigorously tested for performance and safety, ensuring reliability under maximum load conditions. Specification: Input: AC 110V / 220V ± 20% 47 / 63Hz Output: 12V, 30A Adjustable range of direct output voltage: ± 10% Output voltage tolerance: ± 1% Protections: overload / overvoltage / short circuit Material: Metal Weight: 695g / 24.5oz (approx.) Package list: 1 * Power supply Connection: L, N: AC power input GND: DC power output "-" V: DC power output "+" + V / ADJ: Adjust the output voltage Special note: This "NO" power supply unit comes with installation instructions, wiring cable, on / off switch, or screws. The professional installation of a qualified electrician is highly recommended. Package List: 1 * Power supply Connection: L, N: AC power input GND: DC power output "-" V: DC power output "+" + V / ADJ: Adjust the output voltage Package List 1 * Power supply Connection: L, N: AC power input GND: DC power output "-" V: DC power output "+" + V / ADJ: Adjust the output voltage