This is the Genesys In-Flight Power System from Sullivan. This revolutionary power system is basically like the alternator in your car. The Genesys will recharge your receiver battery pack in flight while it runs your servos and whatever other accesories you may have. Once the engine is running past a fast idle the Genesys takes over and recharges your battery pack while providing electrical power to the servos and the like. The CCU (Central Control Unit) has five accessory output jacks to plug in such options as navigation lights, strobe lights, rotating beacon, etc... which Sullivan carries specifically for the Genesys.:

Gives the option of running the full system of accessories and battery recharging, running the accessories only or simply recharging a separate battery pack. Can charge either 4.8V or 6.0V battery packs. ONLY reduces engine power output 200 to 400 RPM. For use on .30 to 1.50 size two-strokes or four-strokes Magnetic ring only takes up 1/16 on prop shaft If your engine stops or at less than fast idle your Rx pack takes over and continues running your servos and the like. The center hole in the ring fits 3/8 shafts: