... days up to 3-5 days 2, high lumen LED, replace HPS 3. TWO TIMES of rainy day backup ... with high humidity and dust. Protection Functions: · Protection of Short-circuit, Reverse discharging, Polarity, Lightning, Brownout and Over-charge. Fully Automatic Operation: · Detects day and ... need simple thermal management, and last up to 50,000 hours, with a 2-year warranty. LED wattage is equivalent to ...