ECCO beacons strobes feature smooth and quiet belt-driven rotator mechanism and incorporate free-form optical reflector to maximize beam pattern and light output. Features polycarbonate lens and twist-on lens with locking screw for easy bulb replacement. Die-cast aluminum base that is coated against corrosion, designed for vibration resistance and incorporates ECCO's exclusive built-in capacitor cradle providing even and efficient heat dissipation.