It is small size, light weight,resistant and strongWith the functions of Low-frequency protection and voltage slowly established,EMI suppression circuitSuitable for generators,can adjust the voltage slightly to stabilize the output voltage of the generatorWhen the remanence voltage is greater than 4 v / 25 hz,the Voltage will be set automaticallyModel: R230Frequency:50-60HzVoltage input:85-139VACOutput Voltage:max 63VDC at 100VAC inputCurrent:continuous 8A dc, intermittent 10A for 10 secs:15 minimumRegulation:+/-0.5%Voltage build-up:Residual voltage at avr terminal5VACExternal Voltage Adjustment:+/-10% with 1k ohm 1 watt trimmercolor:BlackMaterial:Metal+PCPackage Contents:1 x Voltage RegulatorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.