Non-dimmable LED Driver

120-277vac DALI-2 dimmable 400ma-1400ma constant current led driver for indoor

This DALI-2 dimmable LED driver operates in constant current mode with an efficiency of up to 87% and features multiple protections, including short-circuit and over-temperature protection. Its compact design makes it suitable for indoor smart lighting installations. It comes with a 7-year warranty.
  • item no.:

    SMT-R0401A4-DP2-P
  • brand:

    SMARTS
  • Input Voltage:

    100-277VAC
  • Output Current:

    400mA-1400mA
  • Working Mode:

    Constant Current
  • Certification:

    UL,FCC, CE, ROHS
  • Warranty:

    7 years
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product details

120-277vac DALI-2 dimmable 400ma-1400ma constant current led driver for indoor

This DALI-2 dimmable 40W constant-current LED power supply features built-in active PFC and a robust housing design that ensures excellent heat dissipation. Driver parameters can be adjusted via DIP switches, and the dimming range is 1–100%, offering smooth, stable, and flicker-free performance.


  Specification 


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  Mechanical Specification   

American wire gauge
CO4C
Input wire Black(L) White(N) (2*18AWG)
Output wire Red(V+) Black(V-) (2*22AWG)
Dimming electronic wire Purple(DIM+) Pink(DIM-) (2*22AWG)


  Dimming Operation  

Connection Diagram for DALI Dimmer:

Connection Diagram for DALI System:


  NFC function   





ProNFC APP

NFC Handheld devices

IOS Download

Android Download








Adjust output voltage slightly by NFC

The output voltage can be read and written by a mobile with ProNFC APP or NFC handheld device (NFC read & write device: NFC-RW)

by close to the NFC signal area of the Dimmable LED driver.

NFC voltage regulation level
  level 1 level 2 level 3 level 4 level 5 level 6 level 7 level 8 level 9 level 10
12V 12.0V 12.2V 12.3V 12.5V 12.6V 12.8V 13.0V 13.1V 13.3V 13.5V
24V 24.0V 24.2V 24.4V 24.7V 24.9V 25.1V 25.3V 25.6V 25.8V 26.0V
36V 36.0V 36.2V 36.4V 36.7V 36.9V 37.1V 37.3V 37.6V 37.8V 38.0V
48V 48.0V 48.2V 48.4V 48.7V 48.9V 49.1V 49.3V 49.6V 49.8V 50.0V


Set Address easily by NFC

The address can be read and written by a mobile with Set NFC APP or NFC handheld device (NFC read & write device: NFC-RW) by close to the NFC signal area of the Dimmable LED driver.


  Related Products  

30W constant-current DALI-2 dimmable LED power supply featuring a circular plastic housing design; it offers smooth, stable, and flicker-free dimming across the 0–100% range and comes with an exceptional 7-year warranty.


Mode:SMT-R-030-DP2-P

intput voltage:100-277vac

Size : 64.4*58.2*24MM
output voltage:12vdc
Weight:0.103Kg/pcs

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