Product derived from the French offshore racing, the hydrogenerator CRUISING Watt & Sea is a device attached to the vessel, using the flow of water to generate electricity on sailboats cruising or racing. Designed with optimum performance and an imperceptible drag, the hydrogenerator can generate up to 100% of electrical needs, positive energy or recharging the batteries to make use of while anchored. Cruising 300W12V