... 50000h d.High ES Circular LED Ring Light e.Quick reply & delivery High Energy saving Circular LED Ring Light Detailed Features and Applications: ... ; according to customers' need.Lead Time2~3 weeks generally; Flexible (according to the quantity).Advantage1) Low-carbon, mercury free, ... frequent flash, good CRI, good to eyes;2) 1/10 of incandescent lamps' consumption, short response time;3) Safe, durable ...