high quality and low price Light Source24 V LED Light Source Power18 WLuminous FluxAbove 1700 LMSingle 1W above 95 ... pulse charging.Product warrantyLight sourceWarranty 2 years ,1000 hours no light decay,3000 hours below 3%solar panelWarranty 5 years, ... of products,products maintenance,common failure solution to the problem,emergency treatment.Maintain2 h for response, solve product problems in 3days ...