12v dc led driver class 2 20w led power supply for led loads
A 12v dc 20w led power supply gets class2 approval. High stability and low ripple, it can increase light efficiency and decrease light attenuation. Especially it is a triac dimming power supply with SAA certification.
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·Output constant current ·Input range :180-265VAC ·Built-in PFC function / Efficiency > 83% ·Protections:Short circuit/over Voltage ·Fully isolated plastic case IP20 / Easy installation ·Cooling by free air convection ·Work with leading edge and trailing edge Triac dimmer ·Strong compatibility, flicker-free dimming ·Suitable for LED lighting and moving sign applications ·Compliance to worldwide safety regulations for lighting ·CE,SAA, RoHS approval ·5 years warranty |
Derating Curve
Load carried in accordance with the load derating curve, according to the ambient temperature derating, in order to extend the running life.
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Model |
SMT-012-020VT |
SMT-024-020VT |
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Output |
DC Voltage |
12VDC |
24VDC |
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Voltage Accuracy |
±5% |
±5% |
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Rated current |
1.66Amp |
0.83Amp |
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Rated power |
20W |
20W |
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Input |
Voltage Range |
90-135VAC / 170～250VAC |
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Frequency Range |
47～63HZ |
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Power Factor （Typ.） |
PF≧0.92/110V ; PF≧0.94/220V ; PF≧0.95/250V |
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Full Load Efficiency（Typ.） |
>83% |
>83% |
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AC Current（Typ.） |
0.14A/110VAC 0.12 A/220VAC 0.01A/250VAC |
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Leakage current |
<0.27mA/110VAC; ﹤0.25mA/220VAC |
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Protection |
Short Circuit |
Hiccup mode, recovers automatically after fault condition is removed. |
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Over voltage |
≦140VAC(90~135V) , ≦270VAC(170~265V) |
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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 |
EN-60950-1, EN-61347-1/-2/-13 |
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Withstand voltage |
I/P-O/P:3.75KVAC |
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Isolation resistance |
I/P-O/P：100MΩ/500VDC/25℃/70%RH |
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EMC EMISSION |
Compliance toEN55015,EN61000-3-2 (≧50%load) |
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EMC IMMUNITY |
Compliance to EN55015,EN61000-4-2,3,4,5,6,8,11,A light industry level （surge4KV） |
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Others |
Weight |
About 0.16Kg/pcs |
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Size |
140*45*28mm mmm（L*W*H） |
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packing |
324*298*176mm |
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Notes |
1. All parameters NOT specially mentioned are measured at 110V/230VAC 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 . |
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