The Efficient Warehouse Luminaire or EWL has been developed to meet the rising demand for a cost effective alternative to traditonal Hibay or Lobay lighting. This 54w version can replace 400w Hibays mounted up to 8 metres, thereby reducing the energy consumption by 200w oer fitting while still producing comparable light levels. The EWL is also available with a daylight sensor, by lowering light output when sufficient daylight is present, this option can save upto an extra 50% energy usage.