Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well ELG-100-C500DA Power Supply 100W 500mA - DALI
The ELG-100 is a 100W Mean Well power converter (input range: 100~305VAC).
Key Features
- ✓ Input voltage range: 100~305VAC
- ✓ DC output voltage adjustable ±10%
- ✓ 3.75KVAC reinforced I/O isolation
- ✓ Protections: Short circuit / Over voltage / Over temperature
- ✓ Active PFC — meets international energy efficiency regulations
- ✓ Safety approvals: IEC62386-101, 102, 207 for DA-Type only
- ✓ 3 years warranty
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BrandMean Well
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SeriesELG-C Series
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Power Rating100 Watt
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Output Voltage210 Volt
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Rated Current0.5 Ampere
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Input Voltage100V~305V
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No of Output1
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Dimming ControlDALI
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Standards MetBSI,CB,CCC,CE,EAC,ENEC,RCM,UL
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Operation ModeConstant Current
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Operating Temperature-40°C~90°C
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Warranty5 Year
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Length7.83 in
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Width2.48 in
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Height1.4 in
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Weight1.87 lb
::specification::
Frequently Asked Questions
Can I use the ELG-100-C500DA to power LED downlights in a DALI-controlled commercial space?
Yes. The ELG-100-C500DA is a constant current driver with built-in DALI dimming, making it well suited for commercial LED downlight systems on a DALI bus. It delivers 500mA across a CC output voltage range of 100–200V and handles up to 100W. The IP67 rating also allows installation inside recessed ceiling cavities where moisture ingress is a concern.
Is the ELG-100-C500DA suitable for powering high-voltage LED signage modules?
Yes, provided the LED string forward voltage falls within the 100–200V constant current operating range. The driver maintains a steady 500mA output regardless of load variations, which suits series-connected LED signage modules. Because it operates at higher LED string voltages than lower-current CC drivers, it is a good fit for long-string indoor channel-letter or lightbox applications.
Can this driver be installed outdoors or in wet environments?
Yes. The ELG-100-C500DA carries an IP67 waterproof rating, meaning it is protected against temporary immersion and can be mounted in exposed outdoor locations such as building facades or exterior signage cabinets. The operating temperature range of -40°C to +90°C supports installation in both cold and warm climates.
How does the ELG-100-C500DA differ from the non-DALI ELG-100-C500?
The ELG-100-C500DA adds DALI (Digital Addressable Lighting Interface) dimming control versus the standard ELG-100-C500 which has no built-in dimming. Both share the same 100W output, 500mA constant current, and 100–200V CC voltage range. Choose the DA variant when your installation requires integration into a DALI-2 building automation or lighting control network.
How many LEDs can the ELG-100-C500DA drive in a series string?
The number of LEDs depends on each LED's forward voltage. The constant current output voltage range spans 100–200V, so any series string whose total forward voltage falls within that window can be used. Divide the available voltage range by the forward voltage of your specific LED to determine how many can be placed in series.
What input voltage range does the ELG-100-C500DA support?
The driver accepts a universal AC input of 100–305VAC, covering standard 120V and 230V mains as well as higher industrial supply voltages. This wide input range makes it usable across North American, European, and Asian electrical infrastructure without modification.
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