The solar-powered unit is equipped with a standard AV-OL-ILAB-12-R light-head, and uses a single high intensity LED as a light source. The light fixture is preset to Type B intensity setting (32cd) but can be reduced to Type A (10cd) by the operator if required.The solar modules charge the battery during daylight hours, and the light automatically begins operation at dusk once the ambient light threshold drops sufficiently.The assembly is available in two solar/battery configurations to suit a range of installations and ensures years of maintenance-free reliable service. The obstruction light is also available with combined visual and infrared (IR) for visibility to pilots using night vision.The solar assembly is also available with dual light fixture for redundant failsafe.The AV-OL-ILAB-12-R complete light assembly is also available with the following optional features:Optional GSM Cell-Phone Monitoring & ControlOptional GSM Cell-Phone Monitoring is also available enabling operators to remotely monitor the status of their aviation installations. The system can also be configured to send out alarm SMS text messages to designated cellular telephone numbers. Users can alsohave alarms and reports sent to designated email addresses.