Factory Price IP66 LED Low Intensity Aircraft Warning Red Beacon Double Heads Aviation Obstruction Warning Light for High-Altitude Buildings and Bridges. Dual Power Input: Supports DC 48V and AC 110-240V for versatile power supply environments. IP66 Waterproof: High waterproof rating ensures reliable performance in harsh weather conditions. CREE LED Chips: Utilizes high-brand CREE LEDs for consistent brightness and long service life. Main & Standby Mode: Automatic switch to standby light if main fails, ensuring continuous marking. Bird Deterrent Design: Equipped with top spikes to protect the device from bird damage. UV-Resistant Housing: Polycarbonate cover prevents yellowing for 3-5 years with excellent UV protection. Easy Installation: Features 3/4-inch thread hole and screw-free twist-lock cover design. ICAO & FAA Compliant: Meets ICAO Annex 14 and FAA L-810 standards for aviation safety.