1) Material: brushed stainless steel 2) Working time: up to 8 hours per day (Fully charged) 3) Mono-crystalline silicon or polycrystalline silicon solar energy battery sets 4) Light source: high brightness LED 5) Colorful light for choosing: white, green, yellow, blue and red (optional) 6) By adhering to our business tenet: customer paramount, quality first, credit foremost and innovation", we sincerely look forward to cooperate with the you