60W 12VDC Class 2 Triac dimmable 100-277VAC constant voltage LED Power Supply driver + PWM signal




60W 12VDC Class 2 Triac dimmable 100-277VAC constant voltage LED Power Supply driver + PWM signal, MRS12V60WDVTH


  • Output constant voltage
  • Input voltage range 100-277VAC
  • Built-in PFC function / PF>0.97
  • Efficiency >85% / Dimming range: 0~100%
  • Protections:short circuit/over voltage/over heat
  • Cooling by free air convection / Flicker-free
  • Work with leading edge and trailing edge triac dimmers available
  • PWM output, does not change the color index
  • 1.0 version suitable for dry & damp location
  • 2.0 version suitable for dry, damp & wet location
  • Strong compatibility, flicker-free dimming
  • Suitable for LED lighting and moving sign applications
  • Compliance to worldwide safety regulations for lightings.
  • Compatible with Forward phase, Reverse phase, Triac, MLV, ELV Dimmers
  • 7 years warranty

※Input:18AWG Black and White to be connected to AC L and N ,Green wire go ground,

※Output: Red is(DIM+),Black is(DIM-)

■Dimming Operation

※Output constant current level can be adjusted through input terminal of the AC phase line(L) by connection a triac dimmer.

※Compatible with Leading edge or trailing edge triac dimmers, but trailing edge dimmers work better..

※Please try to use dimmers with power at least 1.5 times as the output power of the driver.

■Derating Curve

※Load carried in accordance with the load derating curve, according to the ambient temperature derating, in order to extend the running life.   

■Connecting Diagram

■ Simple Connection Diagram


model MRS-12V60W-DVTH(1.0 version)
Output DC Voltage 12V
Voltage Accuracy ±0.5V
Voltage Regulation ±0.5%
Rated current 5.00A
Load Regulation ±1%
Rated power  60W
Input Voltage Range 100-277V AC
Frequency Range 47~63HZ
Power Factor ( Typ.) 0.98@120VAC  0.95@277VAC
  Full Load Efficiency(Typ.) >83%
AC Current(Typ.) 0.9A/110VAC
Inrush Current (Typ.) 14A, 50%, 780us
Leakage current <0.50mA
Over temperature 100℃±10℃ shut down o/p voltage, automatically recover after cooling.
Short Circuit shut down o/p voltage, re-power on to recover after fault condition removed
Over Loading ≤120% Hiccup mode,recovers automatically after fault condition is removed
Over voltage ≦140VAC(90~135V) , ≦285VAC(170~277V)
Environment Working TEMP. -40~+60℃
Working Humidity  20~90%RH,non-condensing
Storage TEM.,Humidity -40~+80℃,10~95%RH
TEMP.coefficient ±0.03%/℃(0~50℃)
Vibration 10~500Hz,2G 10min./1 cycle,period for 60min.
each along X,Y,Z  axes
Safety&EMC Safety standards UL8750+UL1310
Withstand voltage I/P-O/P:3.75KVAC  
Isolation resistance I/P-O/P:100MΩ/500VDC/25℃/70%RH
EMC IMMUNITY  Compliance to EN55015; EN61000-4-2,3,4,5,6,8,11, EN61547
Alight industry level (surge4KV)
Others Weight About 1.1Kg
Size 1.0 version: 188*92*26mm(L*W*H); 2.0 version: 188*94.5*40mm(L*W*H)
packing 10PCS/CTN
Notes 1.    All parameters NOT specially mentioned are measured at 110V/277VAC input , rated load and 
25℃of ambient temperature.
2.    Ripple& noise are measured at 20MHz of bandwidth by using a 12”twisted 
 pair-wire terminated with a 0.1uf &47uf parallel capacitor.
3.  Tolerance:includes set us tolerance,line regulation and load regulation . 

■ Instruction:

※This driver should be installed by qualified and professional person;

※Please make sure the driver is installed with adequate ventilation around it to allow for heat dissipation.

※Ensure that wiring is correct before test in order to avoid light and power supply damage;

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