24v external dimmable led lamp power supply 250ma
20-32vdc 250ma 8w led lamp power supply is IP20 plastic case, design with small size to be put in LED lighting products which has space limitation for led driver. 0-100% dimming range to provide a good dimming effect when working with 0-10v dimmer， PWM dimmer or resisitor dimmer. .
Specification
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Model |
SMT-50-0150CDH
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SMT-40-0200CDH |
SMT-32-0250CDH
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SMT-28-0300CDH
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Output |
DC Current |
150mA |
200mA |
250mA |
300mA |
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Current Accuracy |
±3% |
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Voltage Range |
38-50V |
28-40V |
20-32V |
16-28V |
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Rated power |
8W |
8W |
8W |
8W |
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Input |
Voltage Range |
180～265VAC |
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Frequency Range |
47～63HZ |
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PF(Typ.） |
PF>0.9 |
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Full Load Efficiency（Typ） |
>86%(110V) >88%(220V) |
>86%(110V) >88%(220V) |
>86%(110V) >88%(220V) |
>86%(110V) >88%(220V) |
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AC Current (Typ.） |
0.104A(110V) 0.106A(220V) |
0.102A(110V) 0.103A(220V) |
0.102A(110V) 0.103A(220V) |
0.101A(110V) 0.103A(220V) |
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Leakage current |
<0.72mA/110VAC / ﹤0.75mA/220VAC |
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Protection |
Short Circuit |
Protection type: Hiccup mode, recovers automatically after fault condition is removed |
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Over Current |
≦1.4*Iout |
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Over temperature |
100℃±10℃ shut down o/p voltage, re-power on to recover |
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Environment |
Working TEMP. |
-40～+50℃ |
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Working Humidity |
20～95%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，5G 12min./1 cycle，period for 72min.each along X,Y,Z axes |
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Safety&EMC |
Safety standards |
EN61347-1 EN61347-2-13. IP20 |
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Withstand voltage |
I/P-O/P:3.75KVAC I/P-FG:1.88KVAC O/P-FG:0.5KVAC |
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Isolation resistance |
I/P-O/P I/P-FG O/P-FG：100MΩ/500VDC/25℃/70%RH |
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EMC EMISSION |
Compliance to EN55015,EN61000-3-2 (≧50%Load) |
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EMC IMMUNITY |
Compliance to EN61000-4-2,3,4,5,6,8,11,EN61547,A light industry level |
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Others |
Weight |
0.2Kg |
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Size |
85*45*26mm（L*W*H） |
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packing |
320*280*215mm/50pcs /CTN 145*50*36mm for inner box |
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Notes |
1. All parameters NOT specially mentioned are measured at 110VAC, 220VAC 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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Dimming function
FAQ: Do you need a special dimmer switch for LED light bulbs?
Due to the different efficency and performance of LEDs, LEDs are not always compatible with traditional dimming switches. If you'd like your LED to be dimmable, you need to do one of two things: find LED bulbs compatible with traditional dimmers, or replace your current dimming switch with a dimmer.
The dimming mode of this 250ma constant current led driver is 0-10v dimming, hence the dimmers which is able to work with this led driver is 0-10v dimmer， PWM dimmer or resisitor dimmer.
