Say goodnight to bug sprays and yard treatments. Learn more about TIKI Brand BiteFighter LED string lights. Proven mosquito repellency is based on studies that demonstrated a reduction in mosquitos compared to untreated controls. Use as directed. Efficacy may be affected by weather conditions, configuration and distance from repellent pods, and individual physical factors. Season assumed as 200 hours or 90 days at an average use of 2.4 hours per day.