This Dimmable LED Driver 12V is compatible with many models of Triac, ELV, MLV, forward and reverse phase dimmers, and on/off switches.
This 250 Watt LED Driver is available in a wet/dry location model with an IP rating of IP67 to fit most installations. CONVERTS 110V AC / 277VAC to 12V DC and works with LED compatible dimmer switches from Lutron, Leviton and more SMOOTH AND RELIABLE DIMMING from 0 to 100% with no flicker.
Specification for led driver triac
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Model |
SMT-012-250V THW |
SMT-024-250V THW |
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Output |
DC Voltage |
12V |
24V |
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Voltage Tolerance |
±0.5V |
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Voltage Regulation |
±0.5% |
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Voltage Tolerance |
±0.5V |
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Load Regulation |
±2% |
±1% |
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Rated current |
20.83A |
10.41A |
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Rated power |
250W |
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Input |
Voltage Range |
100-277VAC |
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Frequency Range |
47～63HZ |
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Power Factor（Typ.）@ full load |
0.98@120VAC 0.97@277VAC |
0.98@120VAC 0.97@277VAC |
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THD（Typ.）@ full load |
<20% |
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Inrush Current （Typ.） |
20A, 50%, 1.4ms |
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Full Load Efficiency（Typ.） |
>83% |
>83% |
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AC Current（Typ.） |
2.56A@110VAC |
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Leakage current |
<0.50mA |
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Protection |
Short Circuit |
shut down o/p voltage, re-power on to recover after fault condition is removed |
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Over load |
≤120% constant current limiting, auto-recovery |
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Over temperature |
100℃±10℃ shut down o/p voltage, automatically recover after cooling. |
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Over Current |
≤1.4*I out |
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Environment |
Working TEMP. |
-40～+60℃ |
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Working Humidity |
20～90%RH,non-condensing |
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Storage TEM.,Humidity |
-40～+80℃，10～95%RH |
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TEMP.coefficient |
±0.03%/℃（0～50℃） |
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Vibration |
10～500Hz 2G 10min./1 cycle，period for 60min.each along X,Y,Z axes |
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Safety&EMC |
Safety standards |
UL8750 |
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Withstand voltage |
I/P-O/P: 3.00KVAC |
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Isolation resistance |
I/P-O/P：100MΩ/500VDC/25℃/70%RH |
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EMC EMISSION |
Compliance to FCC Part 15 B |
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EMC IMMUNITY |
EN61000-4-2,3,4,5,6,11（Surge 4KV） |
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Others |
Weight |
1.75Kg |
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Size |
276*78*47mm (L*W*H) |
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packaging |
10PCS/CTN 385*335*200mm 20PCS/CTN |
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Notes |
1. All parameters NOT specially mentioned are measured at 110V & 277VAC input , rated load and 25℃of ambient temperature. 2..Tolerance:includes set us tolerance,line regulation and load regulation. |
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Mechanical Specification for dimmable led driver 12v
※Input: 3 * 18AWG Black and White to be connected to AC L and N ,Green wire go ground,
※Output: Red is（DIM+）,Black is（DIM-）/ 2 * UL 14AWG power cord
Dimming Operation for 250 watt led driver
※Output PWM of output voltage can be adjusted through input terminal of the AC phase line(L) by connection a
triac dimmer.
※Compatible with Leading edge or Reverse phase, trailing edge triac dimmers, Magnetic low voltage dimmers,
Electric low voltage Dimmers..
※Please try to use dimmers with power at least 1.5 times as the output power of the driver
Connecting Diagram for 277VAC LED Driver
