["IMPORTANT NOTES:\r\nfor DC motor controller input is for DC, cannot be directly connected to AC\r\nPositive and negative power supply cannot be reversed, otherwise the controller will be damaged\r\nFunctions Setting:\r\nFunction 1: Soft-start Setting.\r\n[\"000\"-\"100\"], Soft start to speed for time can be adjustable between 0-10.0s. Default is 1s.\r\nFunction 2: Soft-stop Setting\r\n[\"000\"-\"100\"], Soft stop for time can be adjustable between 0-10.0s. Default is 1s.\r\nFunction 3: MIN Speed Setting\r\n[\"000\"-\"080\"], The min speed can be adjustable from 0 to 80%, and must be less than the max speed setting value. Default is 0.\r\nFunction 4: MAX Speed Setting\r\n[\"000\"-\"100\"], The max speed can be adjustable between 0-, and must be more than the min speed setting value. Default is \r\nFunction 5: Speed Regulation Accuracy Setting\r\n[\"000\", \"002\" , \"005\" , \"010\" , \"015\", \"020\" , \"025\"], Accuracy: 1%, 2%, 5%, 10%, 15%, 20%, 25% can be chosen. Set the min changed value, when press the UP or DOWN keys.\r\n\r\nSpecifications:\r\nInput Voltage: for DC 12V-80V\r\nPower: max 250W cont. for 12V;\r\nmax 350W cont. for 24V;\r\nmax 500W cont. for 48V\r\nMax Current: 30A\r\nSpeed Adjustable Range: 0~\r\nPWM Frequency: 21 kHz\r\nController Dimensions: 11x7.7cm/4.33x3.03\"\r\nPanel Dimensions: 9.7x6.9cm/3.82x2.72\"\r\nQuantity: 1 Set\r\n\r\nNote:\r\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nNo Retail Package\r\nPackage Includes:\r\n1 x for DC Motor Speed Controller\r\n1 x Digital Display Panel"]