No matter what product, there are certain conditions when using. Below small make up on the conditions of use of dc motor controller. 1. In use, dc motor controller place no more than 4000 m above sea level. 2. Environment temperature in - in use, requirements25℃-Between 40 ℃. 3. When in use, when the temperature is 25 ℃, the humidity requirements under 95%. 4. In use, when the altitude of 1000 m, the allowed temperature should not exceed 75 k. Above is the use of dc motor controller.