... need 2.Smart custom power solutions. 24V 4a adapter for neon light pcb 1. 100% full load burn-in test2 ... inverted connecting protectionSpecifications 1)28-30W led street light power supply 2)Certification:ROHS and CE 3) ... current constant, no drift. 3. High security, suitable for high humidity, high dust, strong vibration environment of use ... and function driver module. 24V 4a adapter for neon light pcb