RELEC STRONG FAMILY Relec spray. The Relec Family mosquito repellent is a powerful solution that safeguards against mosquito bites, providing protection for as long as six hours. Just one application ensures maximum effectiveness, allowing you to relish your preferred outdoor pursuits during vacation time. It is especially ideal for use in moderate climates, making it perfect for camping trips, coastal adventures, countryside explorations, mountainous hikes, river outings, beach days, and terrace gatherings.