These lamps pass the EPA's TCLP test for non-hazardous materials. Ideal for industrial applications, warehouses, post top applications and parking lots. BENEFITS: - Low mercury - better for the environment. - Long Life - 24,000 hours Rated Average Life. - High efficacy up to 140 LPW. FEATURES: - Low total cost of ownership. - Long life—up to 24,000 hours. - High efficacy up to 140 LPW. - ALTO Lamp Technology - Sustainable solution.