250W 22" High Bay fixture ideal for indoor lighting applications such as manufacturing, warehouse, sports, etc. Fixture has heat and impact resistant aluminum diffuser /reflector with tempered flat glass lens. Fixture has concealed continuous gasket sealing against harmful dust, dirt, moisture and insects. Aluminum ballast housing with mounting hook and 3' cord whip for easy installation. Ballast made with long life components InstantON(TM) flicker-free Cold Start and Hot Re-Start. Correlated Color Temperature of 5000°K for greater visibility. High Power Factor, Low THD Replaceable Ballast with Advanced phosphors for high Lumen Maintenance and high lumen output up to 10 years Maintenance free operation. Fixture can be supplied with longer cord whip and optional plug if required.