Note:?This?product?has?the?cooling?fans?to?perform?a?sound?(the?sound?of?a?fan?rotates)? Not?applicable?to: Programming / Speed?Control?Motor / dimming?Light / plant?Light / power?Controller / constant?Current?Module. Constant?Voltage?Power?Supply,?Non-Constant?Current?PSU, Suitable for powering single DC voltage devices.? Main?Parameter Output?voltage:?DC?12V Range?Of?Difference:±1% Rated?Power:?600W Peak?current:50A?max (Please?calculate?the?power?and?current?accurately,?and?add?at?least?a?20%?dummy?load.? If?it?is?a?motor,?add?a?dummy?load?of?more?than?50%.) Efficiency:?>83%? Leakage current: ?<1mA / 230V Input?voltage:AC?110V (85-145V?) / 220V(185-265V) When AC 85-145V, Frequency 60Hz, Efficiency?>80% When AC 185-265V, Frequency 50Hz, Efficiency?>70% Working Temperature: -10 ~ + 60 (Refer to the output load derating curve) Working Humidity: 20 ~ 90% RH Storage Temperature: -20 ~ + 85 Storage Humidity: 10 ~ 95% RH? Product?Size:?228*115*50 mm?/ 9*4.5*2 inch Net weight:?0.8 kg / 1.75 lb Package?weight: 1.1 kg / 2.5 lb Package?contains: 1*POWER SUPPLY 1*OPERATING MANUAL Please download the multilingual OPERATING MANUAL from the Sales URL, or contact Seller's Customer Service.