... choose. Procedure is very importent to customers, which can make you clear about how to install it and how to use it. 1) All ... years 1).If driver failed, we'll send you a new driver; 2).If LED failed, we'll send ... time. Every order's progress is shown to all relative persons in ERP software and board Every Day.Also with ... ).All managed by software2.Payment Term O/A,L/C,D/A,D/P,T/T,Western Union,Paypal ...