Electronic battery charging regulator is included with battery equalizing capability. Five year warranty. Tower kits are guy wired Rohn radio tower with top adapter for the windmill mount. Excellent low wind performance and high quality at a good price. Three fiberglass blades are 2.6 meter diameter.
Blades furl sideways to limit speed in high wind for storm protection.
The XL1 model includes a diversion type charge controller that can also accept up to 30 amps of solar. 5 year warranty. In 6 foot tower sections with hardware, guy anchors, guy wires, and gin-pole to erect it. Whisper has only 3 moving parts, with no brushes in alternator. The blade rotates the outer shell of bar magnets around a stationary 3 phase AC winding, creating 3 phase AC, rectified to DC in the control box.