... to 110~120lm/W 2. Germany controller,good price Rainy Resistance Cost effective solar street lightSolar Street Light -COBRAHEAD ... outagesNo monthly electric bills Battery backup for cloudy or rainy days Easy to install with quick connect plugs Low maintenance ... powder spray treatment.Over 20 years life, resistance of sunny, rainy, windy and salty weather. System Diagram: Quality Checking: SOLARTEND ...