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Mean Well LDH-45A-1050W DC/DC LED Driver CC 1050mA - Step-up
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 Rating45.15 Watt
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Output Voltage43 Volt
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Rated Current1.05 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 the LDH-45A-1050W be used for a constant current LED downlight?
Yes, this model is intended for constant current LED loads at 1050mA, including LED downlights whose total forward voltage is within the 12-43V CC range. It should not be used in place of a constant voltage power supply for LED products that require fixed-voltage input.
Is this a good fit for compact signage lighting that uses high-power LEDs?
It can be, provided the signage lighting uses a 1050mA constant current LED load and the total forward voltage stays between 12V and 43V. With 45.15W available, it is intended for higher-power constant current LED applications rather than low-power constant voltage modules.
Can I use the LDH-45A-1050W for a small LED array in a sealed fixture?
Yes, the IP67 waterproof rating supports use in sealed fixtures, and the operating temperature range is -40°C to +70°C. The LED array still must be a 1050mA constant current load within the 12-43V CC range.
What kind of LED load matches the LDH-45A-1050W?
The correct match is a constant current LED load rated at 1050mA with a total forward voltage from 12V to 43V. The number of LEDs depends on each LED forward voltage, so the key check is whether the full LED string stays within that CC output range.
What is the difference between the LDH-45A-1050W and the other 1050 output-current LDH models?
LDH-45A-1050 and LDH-45A-1050W are both 45.15W models with a 12-43V CC range, while LDH-45A-1050DA and LDH-45A-1050WDA shift to a 24-43V CC range at the same 45.15W. LDH-45B-1050 and LDH-45B-1050W use a 21-43V CC range, LDH-45B-1050DA and LDH-45B-1050WDA use 36-43V, and LDH-65-1050 and LDH-65-1050W move up to 63W with a 12-60V CC range.
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