Backed by a diligent team of professionals, we are engaged in trading and supplying an excellent range of Liebert PeX Power Systems. The Liebert PEX: More Than A Single Energy Efficient component The efficiency of the Liebert PEX is engineered into the product. Each component that goes into the Liebert PEX is carefully tested to ensure that it will contribute to its overall efficiency. All enchancements to energy efficiency are designed to reduce operating time and cycling of key components and increase reliability. In addition to having components that are individually engineered to provide the best efficiency, how these components work and interact with each other also contribute to the energy savings you get with the Liebert PEX.