SOX135 12PK by Signify Lamps

High energy efficiency low pressure sodium lamps for indoor and outdoor applications Vibration resistant.;Long Life.;Energy efficient High energy efficiency low pressure sodium lamps for indoor and outdoor applications. Energy Efficienct up to 180 lumens per watt.;18,000 hours rated average life.;Vibration Resistant - rough service arc tube support system provides protection against shock and vibration.;T17 base available in 18, 35, and 55 watts / T21 base available in 90, 135, and 180 watts. Ideal for roadway lighting, bridge and tunnel lighting, security lighting, area floodlighting, railway crossing lighting and airport lighting.