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Mean Well LDH-45B-500WDA DC/DC LED Driver CC 500mA - Step-up
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Mean Well LDH-45B-500WDA DC/DC LED Driver CC 500mA - Step-up
Description
Description
The LDH-45B 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
Specifications
Specifications
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BrandMean Well
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SeriesLDH Series
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Power Rating43 Watt
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Output Voltage86 Volt
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Rated Current0.5 Ampere
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Input Voltage18V~32V
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No of Output1
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Dimming ControlDALI
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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
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the LDH-45B-500WDA with a 500mA LED downlight array?
Yes, if the downlight array is designed for constant current operation at 500mA. This model delivers 500mA across a 36-86V constant current range with up to 43W, so the combined forward voltage of the LEDs must stay inside that window. It is not intended for constant voltage LED loads.
Is the LDH-45B-500WDA a good fit for high-voltage signage modules?
It can be, provided the signage modules are constant current modules rated for 500mA. The 36-86V output range makes it better suited to higher-forward-voltage strings than lower-voltage constant current loads. For signage products that require constant voltage input, a constant voltage driver is the correct choice instead.
Can this model power a compact outdoor LED array?
Yes, the IP67 waterproof construction and -40°C to +70°C operating range make it suitable for compact LED arrays in demanding indoor or outdoor environments. Electrically, the array must be a 500mA constant current load within the 36-86V output window. Its maximum output power is 43W.
What should I check before pairing LEDs with the LDH-45B-500WDA?
Check that your LEDs are meant for 500mA constant current drive and that their combined forward voltage falls within 36-86V. The actual number of LEDs depends on each LED's forward voltage, so there is no single fixed LED count for this model. This driver should not be paired with strips or modules that require constant voltage.
Is the LDH-45B-500WDA suitable for exposed or harsh conditions?
Yes, this version is rated IP67 waterproof and operates from -40°C to +70°C, so it is appropriate for enclosed systems exposed to dust, splashing, or weather. The housing remains compact at 75.0 × 53.0 × 22.7 mm. Environmental suitability does not change the need to keep the LED load within the 36-86V constant current range.
