High Pressure Sodium Light Fixture, Lighting Technology High Pressure Sodium, Lumens 6,300 lm, Number of Bulbs 1, Overall Height 3 7/8 in, Overall Length 13 9/16 in, Overall Width 11 7/8 in, Safety Rating Class I, Division 2, Group A, B, C, D, Class I, Zone 2 AEx nAnR, Class I, Zone 2 Ex nR, Class II, Divisions 1 and 2, Group E, F, G, Class III, Class l, Group IIC, Group llB, Group llA, Zone 2, Color Temperature 2500K, Emergency Battery Backup No, 120/277/347/480V AC