ITEM NAME:LED Driver Power Supply Transformer Adaptor for DIY Lighting LED DC 5V 25W Description: AC 110V/220V voltage to 5V DC. Smart device surge protection for shortage, overload, over voltage. Dual input voltage: AC 110V/220V. There is a switch, choose the proper voltage before use . Great power transformer for electronic equipment, Led Lighting, home appliance etc. Specification: Output Voltage: DC 5V Output Current: 5A Output Power: 25W Ripple and Noise: ≠¤1%mVp-p Load Regulation:  ±1% Input Voltage: AC110V/220V (100-265V) Frequency range: 50/60HZ Efficiency: ï ¼Å¾85% Overload: 130ï ¼â€¦-150ï ¼â€¦; Overvoltage: 115ï ¼â€¦-135ï ¼â€¦ Operating Temperature: -20~+50 °C Working Humidity: 20ï ¼â€¦-90ï ¼â€¦RH Storage Temperature: -20~ï ¼â€¹95ï ¼â€¦ Proof Pressure: IP/OP 3KVAC IP/FG1.5KVAC OP/FG0.5KVAC Insulation Resistance: IP/OP 100m ohms Material: electronic components Size:Approx. 11 x 8 x 3.6cm / 4 x 3 x 1.4inch Package Includes: 1 Piece LED Driver Power Supply Transformer.Output Power: 25W. Load Regulation:  ±1%. Output Current: 5A. Insulation Resistance: IP/OP 100m ohms. Proof Pressure: IP/OP 3KVAC IP/FG1.5KVAC OP/FG0.5KVAC.