... . Supply voltage: DC5V,12V,18V,24V can choose 3. Output: SPI signal DMX_SPI Controller+SPI ModuleMaster Controller 1, LCD display function;2 ... ,Key-press(4 pcs)operation function;3,Memory storage function; 4,adjust the change time ... stock at least 500pcsCertificates: CE and RoHSProductionPacking DMX_SPI Controller+SPI Module