Features:_x000D_ 1. Made of high quality aluminum alloy material, which has good rust resistance and corrosion resistance, solid and durable to use._x000D_ 2. With free air convection cooling and fan cooling mode._x000D_ 3. It has short circuit protection and over temperature protection, safe and reliable to use._x000D_ 4. Easy and convenient to install, but professional installation by qualified electrician is highly recommended._x000D_ 5. Widely applicable for LED display screen, light, household equipment, industrial equipment, monitoring equipment, industrial automation machinery, industrial control system, electromechanical equipment, electronic instrument, etc._x000D_ _x000D_ Specification:_x000D_ Condition: 100% Brand New_x000D_ Housing Material: Aluminium Alloy_x000D_ Color: As Pictures Shown_x000D_ Input: AC110V - 220V 50/60Hz_x000D_ Output: DC 12V 21A_x000D_ Power: 250W_x000D_ Model: S-250W-12_x000D_ Cooling Mode: Free air convection cooling/fan cooling_x000D_ Protection: Short circuit protection, over temperature protection_x000D_ _x000D_ Package List:_x000D_ 1 * Switching Power Supply