Complete with extended terminal section and cable clamps this Osram Powertronic ECG for 20 watt High Intensity Discharge lamps is a reliable ballast that has a 50000 hour service life. Ideal for shop lighting health and fitness environments and effect and accent lighting applications it benefits from automatic shutdown at end of life and in the event of defective lamps. Product dimensions are 204mm x 50mm 32mm (length x width x height).