BDS’s internally lighted windsock frame with 12 volt, linear super-bright white LED light assembly and a programmable red LED top beacon/obstruction light. Model 740LWF-WTB is used with our Model 740ACCU or Model 740ACCU-PC power control unit. The frame is an electro-mechanical assembly with an outer ring for mounting the windsock. A 4 inch square tubing assembly houses the electronics and is used for mounting the LED light assembly. Delrin type bearing hubs permit the frame to rotate 360 degrees as wind direction changes. Electronics inside the tubing assembly transfers power to the windsock light assembly. Our 740 series systems have a 12 volt, linear super-bright white LED light assembly. The light assembly/bulb is ON whenever power is supplied from a power source. Different flash patterns are programmable on our 12 volt internally lighted windsock systems. Several different top beacons/obstruction lights are available (see other models within the 740 Series). Our standard windsock frame is 18” in diameter. 24” and 36” diameter frames are available on special order.