48w 12v 24v triac dimmable Constant Voltage led power supply driver for led strip light
This 48W Triac-dimmable LED driver features an aluminum housing design and a dimming range of 0.1% to 100%; it is suitable for LED lighting and moving sign applications and comes with an exceptionally long 7-year warranty.
Specification
| Model Number | SMT-12048-EUVT-A | SMT-24048-EUVT-A | |
| Output | Rated Power | 48W | |
| Rated Voltage | DC12V | DC24V | |
| Rated Current | 4A | 2A | |
| Voltage Tolerance | ±0.5V | ||
| Voltage Regulation | ±0.5% | ||
| Load Regulation | ±1% | ||
| Input | Voltage Range | 200-240V | |
| Frequency Range | 47-63Hz | ||
| Efficiency (Typ.) | 84%@230VAC | 85%@230VAC | |
| THD | THD≤20% (@100% load) | ||
| Power Factor (Typ.) | 0.95@ 230VAC (full loading) | ||
| AC Current (Typ.) | 0.25A | ||
| Inrush Current (Typ.) | <20A | ||
| Leakage Current | <0.5mA | ||
| Protection | Short Circuit | Hiccup mode, recovers automatically after fault condition is removed. | |
| Over Loading | Intelligently reduce the output voltage, auto-recovery or re-power on to recovery | ||
| Over Temperature | 100℃±10℃ shut down o/p voltage, automatically recover after cooling. | ||
| Protection Class | I | ||
| Environment | Working Temp. | Tcase=-40℃ ~ +60℃ (Please refer to“OUTPUTLOAD vs TEMPERATURE”section) | |
| Working Humidity | 20 ~ 95% RH non-condensing | ||
| Storage Temp.Humidity | -40 ~ +90, 10 ~ 95% RH | ||
| Temp. Coefficient | ±0.03%/℃ (0~50℃) | ||
| Vibration | 10-500Hz,2G 12 minutes/cycle, Period 72 minutes each along X,Y,Z axes | ||
| Safety & EMC | Safety Standards | EN613471, EN61347-2-13 | |
| Withstand Voltage | I/P-O/P:3KVAC I/P-shell:1.5KVAC O/P-shell:0.5KVAC | ||
| Isolation Resistance | I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH | ||
| EMS | EN61000-3-2; EN61000-3-3; EN61547 | ||
| EMF | EN62493-2010 | ||
| Others | IP Rating | IP65 | |
| Weight | 0.39Kg | ||
| Size | L152xW59xH21mm | ||
Mechanical Specification
MCB recommendation:
| When the input voltage is 120Vac,the number of LED Driver matched by circuit breakers is as follows: | ||
| MCB Type | Level | The number of LED Driver |
| C type | 10A | 18 |
| 13A | 23 | |
| 16A | 29 | |
| 20A | 35 | |
| 25A | 45 | |
| When the input voltage is 277Vac,the number of LED Driver matched by circuit breakers is as follows: | ||
| MCB Type | Level | The number of LED Driver |
| C type | 10A | 45 |
| 13A | 58 | |
| 16A | 72 | |
| 20A | 89 | |
| 25A | 112 | |
Note:
1. The above quantities of the led drivers connected on the Type C is recommended base on the maximum ambient temperature is 50 ℃
2. The breaker should be selected according to the input rated voltage, input rated current, ambient temperature, and trip characteristic curve.
Dimming Operation
Using one dimming ---TRIAC/Phase cut dimming
1. The Pulse-Width Modulation (PWM) of output voltage can be adjusted through input terminal of the AC phase line(L) by connection
a phase /Triac dimmer or lighting system.
2. Working with forward phase /leading edge, MLV and Reverse phase /trailing edge, ELV, TRIAC dimmers or light system.
3. Min. loading is about 10%
Please try to use dimmers with power at least 1.5 times as the output power of the driver.
Derating Curve (output load vs TEMP.)

1. To extend their life, please refer to the Derating Curve and derate according to the temperature.
2. Please note that the rise in temperature of LED fixtures over a long period of time will cause their power to rise.
Therefore, we recommend the power supply to reserve a certain amount of load to avoid overloading.
Related Products
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This Featuring an aluminum housing design, this 30W constant-voltage LED driver is suitable for LED lighting projects in indoor damp environments. It offers multiple protection features against short circuits, overheating, and overloads, and is compatible with most Triac dimmers currently available on the market.
Model: SMT-12030-EUVT-A Input Voltage: 200-240Vac
Dimming Mode: triac dimmable
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