Carmanah Lights sounds like west coast cigarettes or low calorie beer for environmentalists, but they're actually a bright idea from a new Victoria Company.It started five years ago when David Green was sailing back from Fiji where he was teaching. On the return voyage he spent a lot of time thinking about what to do next. A partner in Axys a group of Sydney high-tech firms, he had taken the family to the South Pacific after selling his stake in the businesses.One day at sea, the light went on, figuratively.