... pcb board 1.Aluminum material; 2.Good quality with E-test ; 3. Certificate: UL, ISO,TS16949; 4. T/T,Western Union ... ,Paypal round led pcb board with E-test 1. ONE-STOP-SERVICE ;2. OEM service ;3. Gerber file ... if there is any acceptable components substitution.3. Testing Guide & Test Fixtures if necessary4. Programming files & Programming tool if necessary5. Schematic ...