BOLT 12×4 Electric Trim Tab System – Control Switch Required Electric Trim Tab Systems For Trailered BoatsBoaters can enjoy a durable and reliable electric trim tab system designed for 17-28 foot boats. Bennett Marine invented the electric trim tab in 1960, and now Bennett leads the way with an electric trim tab system designed to outperform and outlast any electric system on the market.Compared to other electric systems using old technologies designed over twenty years ago, the BOLT Electric combines cutting-edge technology with a robust and water-tight actuator. This \