... supply,ensure the stable performance ,light source lifespan 50000 hours4.High quality high transparency optics lens, beam angle 60 ° , 90 ° ,120 ° ... options5.RGB color 6.Light effect distance ≤ 15 Meters from top ... ,10M or more as requested 4.Used for solar street light which is supplied by solar panel , Highway,Main road, by-path , ...