Dual Red/White Strobe FAA Type L-864/L-865by TWR Lighting Inc.Features Can be flashed or steady burned. FAA approved Uses 90% less energy than an incandescent. Creates no EMI/RFI. Specifications Intensity Medium Horizontal Coverage 360° Vertical Beam 3° Min Fresnel Optics 320 mm Lens (Patent Pending) Lamp Description 2-Xenon Flashtube Effective Candelas Day 20,000 ± 25% Effective Candelas Night 2,000 ± 25% Number Flashes Per Minute Day 40 ± 2 FPM Number Flashes Per Minute Night 22 ± 2 FPM Flashhead Dimensions 28" x 17.5" (71.12 x 44.45 cm) Flashhead Material Acrylic Flashhead Base Material Aluminum / Blue Powder Coat Power Requirements 120V / 230V AC 50/60 Hz Wattage Daymode 95 Watts Red Nightmode 230 Watts White Nightmode (Backup) 35 Watts Weight 36 lbs. (16.36 kg) Operating Temperature -55°C to +55°C Wind Load CAAA 2.1 ft² Mounting Holes 4- 11/16" holes spaced 90° on 13.25" (33.65 cm) bolt circle