Compact Design High Quality Heavy Duty Low Noise 30V 30 Volt DC Converter Lab Precision Variable Power Supply Lab Precision PS305 DC Power Supply is specialized for scientific research, product modification, mobile computer repair and widely used by laboratories, universities, etc. This DC Power Supply features a very high quality variable 0-30V and current 0-5A. High reliability, low noise and circuit overload protection, excellent choice for business. Please don't use it in the environmental temperature exceeds 45C. Compact Design