OL1 Obstruction Light FAA Type L-810by TWR Lighting Inc.Features Very low power consumption, reduces power needs by 96% over today's obstruction lights FAA Approved Extremely reliable with a 5 year warranty. Specifications Intensity Low Horizontal Coverage 360° Lamp Description 1 x 116W Vertical Beam 10° Minimum Effective Candelas 40 +/- 20% Flashhead Height 7.5" (19.05 cm) Flashhead Diameter 4.875"(12.38 cm) Flashhead Lens Material Fresnel Pyrex Glass Flashhead Base Material Valox™ Power Requirements 120V/240V AC Weight 3 lbs. (1.36 kg) Operating Temperature -55°C to +55°C Wind Load CAAA 0.2 ft² Hub Sizes 0.75", 1" Or 1.25" NPT