GE Consumer & Industrial‘s QL Ultra Efficient Transformer is a 98.6 percent energy–efficient transformer that can bring considerable savings on energy bills and help customers earn U.S. Green Building Council‘s LEED certification points on a project. The QL Ultra Efficient Transformer exceeds requirements of NEMA TP–1–2002 and meets requirements of United States Department of Energy Candidate Standard Level (CSL) 3. Interested customers can see their typical savings based on their type of building by visiting The sound and vibration isolators between the step–lap, miter–cut core and enclosure make the QL Ultra Efficient Transformer, ultra quiet too at –3 decibels below NEMA ST–20.