its base is caste by high intensity aviation aluminum with full sealed structure ;;lamp shade adopts Borosilicate glass,which has strong ability of corrosion,anti-UV,anti-shock;Smart circuit design, it can emit white color at daytime and change to red color at night. Controlling circuit has strong ability of lighting protection and with anti-surge protection device ,it can adapt to extremely bad working environment.There are many kinds of functions for customer adjust. Specification LIGHTING Effective Intensity 20,000c±25%(Daytime), 2,000c±25%(Night) Compliant with FAA L865, ICAO Medium Intensity TYPE A & B Emitting Color White (daytime), Red (night) Operation Mode Flash Pattern Vertical Divergence >10° Horizontal Out-put 360° Light source LED Light lifespan >100,000 Hours POWER SUPPLY Operating Voltage AC220V/230V (default), optional: (AC120V,AC110V,DC48V) Power consumption 20W (Night), 60W (Daytime) STRUCTURE Housing Borosilicate glass Body Aircraft Aluminum, Die-casting Temperature Range -40ï½?70 Wind Load ï¼?80m/s Overall size(mm) Φ237 mmÃ?302mm Installation size(mm) Φ180 by M8 Water-proof IP65 Weight 17kg