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Mean Well LDH-45A-350W DC/DC LED Driver CC 350mA - Step-up
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The LDH-45A is a Mean Well power converter (input range: 9~18VDC).
Key Features
- ✓ Input voltage range: 9~18VDC
- ✓ Protections: Short circuit / Over voltage
- ✓ Remote ON/OFF control
- ✓ 3 years warranty
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BrandMean Well
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SeriesLDH Series
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Power Rating30.1 Watt
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Output Voltage86 Volt
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Rated Current0.35 Ampere
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Input Voltage9V~18V
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No of Output1
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Dimming ControlPWM
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Standards MetCE,EAC
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Operation ModeConstant Current
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Operating Temperature-40°C~70°C
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Warranty3 Year
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Length2.95 in
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Width2.09 in
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Height0.89 in
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Weight0.04 lb
::specification::
Frequently Asked Questions
Can I use the LDH-45A-350W for 350mA LED downlights with a high forward-voltage string?
Yes, this driver is built for constant current LED loads at 350mA with a constant current output range of 12-86V. It can support LED downlights when the total forward voltage of the LEDs stays inside that range and the load stays within 30.1W. It is a constant current driver, so it is not the right match for fixed-voltage LED products.
Is this driver suitable for waterproof signage modules or small outdoor LED arrays?
It can be a fit for constant current signage modules or small LED arrays that require 350mA and operate within the 12-86V constant current range. The IP67 rating supports use in wet or dusty environments, and the operating temperature range is -40°C to +70°C. The load still needs to stay within the 30.1W rating.
Can the LDH-45A-350W power a compact LED array from a low-voltage source?
Yes, it is a step-up constant current driver with a 350mA output and up to 86V output voltage. That makes it useful for small LED arrays that need a higher LED string voltage than the source side, as long as the array falls within 12-86V and 30.1W. This is for constant current LED loads rather than fixed-voltage lighting products.
How do I check whether my LED string is compatible with this 350mA driver?
The LED load must be rated for constant current operation at 350mA, and the total LED forward voltage must fall within the 12-86V constant current range. The number of LEDs depends on each LED's forward voltage, so there is no single fixed LED count for this model. The driver can deliver up to 86V output and 30.1W.
Is the LDH-45A-350W a good choice for harsh indoor or outdoor conditions?
It is designed for demanding conditions with an IP67 waterproof rating and an operating temperature range of -40°C to +70°C. That makes it suitable for enclosed or exposed lighting applications where moisture, dust, or wide temperature swings are a concern. Its compact 75.0 × 53.0 × 22.7 mm size also helps in space-limited assemblies.
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