1In small bowl, mix mayonnaise and lemon juice; set aside.
2In medium bowl, mix flour, baking powder, table salt, red pepper and beer with whisk until smooth.
3In 5-quart Dutch oven or heavy saucepan, heat 2 to 3 inches oil to 350°F. Working in small batches, dip squash slices in batter. Fry in hot oil about 2 minutes or until golden brown. Drain on paper towels; sprinkle with sea salt.
4Serve fried squash chips warm with lemon mayonnaise.