OL2 Double 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 2 x 116W Vertical Beam 10° Minimum Effective Candelas 80 +/- 20% Flashhead Height 13.5" (34.29 cm) Flashhead Diameter 4.875"(12.38 cm) Flashhead Lens Material Fresnel Pyrex Glass Flashhead Base Material Valox™ Power Requirements 120 to 240V AC 50/60Hz Weight 5.3 lbs. (2.4 kg) Operating Temperature -55°C to +55°C Wind Load CAAA 0.2 ft² Hub Sizes 0.75", 1" Or 1.25" NPT