... ,24V can choose 3. Output: SPI signal DMX_SPI Controller+SPI ModuleMaster Controller 1, LCD display function;2,Key-press(4 pcs)operation function ... choose DC6V,DC12V,DC24V3,Received or transmit control SPI signalsSlave Controller Model: LN-DIVSPI-1*3CH-12VRetail price: US$7. ... US$44.45/pcsDMX_485 controller+slave controller(1*3CH,4*3CH,8*3CH,16*3CH)Master Controller 1, LCD display function;2,Key-press ...