Can the LDC-35DA be used for DALI-controlled LED downlights?

Yes, if the downlight is designed for constant current operation at 300mA and the LED load is within the 27-56V constant current range. This is a 35W constant current driver, so it is intended for LED loads that require regulated current rather than constant voltage.

Is the LDC-35DA suitable for signage modules in a DALI lighting system?

It can be, provided the signage module is a constant current LED load that operates at 300mA within 27-56V. It should not be treated like a constant voltage power supply, because this model is designed to regulate current to the LED load.

Can I use this driver for a small LED array in a DALI-based fixture?

Yes, if the array is designed for constant current drive at 300mA and its total forward voltage stays inside the 27-56V range. That makes it suitable for small LED arrays in fixtures that need a constant current driver instead of a constant voltage source.

How do I size an LED load for the LDC-35DA?

Match the LED load to 300mA constant current operation and keep the total forward voltage within the 27-56V CC output range. The number of LEDs depends on the forward voltage of each LED, so the correct match is based on current and combined forward voltage, not a specific LED count.

Is the LDC-35DA suitable for harsher ambient conditions?

This model has an operating temperature range of -25°C to +80°C, which gives it a wide ambient operating window. No IP rating is listed in the provided specs, so environmental suitability should be judged together with the enclosure and fixture design.

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well LDC-35DA Linear LED Driver 35W 300~1000mA Adjustable Output - DALI

constant powerflicker freeultra slim design30mm width

SKU:

LDC-35DA

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COLD START 30A(twidth=250μs measured at 50% Ipeak) at 230VAC; Per NEMA 410

Key Features

✓Constant Power mode output
✓Metal housing design
✓Full power at 70~100% max current
✓Built-in active PFC function
✓Flicker-free design
✓No load/standby power consumption<0.5W
✓Output current level pre-settable
✓Function options: 3 in 1 dimming(dim-to-off); DALI interface, push dimming
✓Typical lifetime>50000 hours
✓SELV and isolated
✓Class 2 power supply
✓5 years warranty

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Model	Power	Voltage	Current	IP Rating
Mean Well LDC-55B Linear LED Driver 55W 500~1600mA Adjustable Output - Dimmable	55W	60V	0.5A	Indoor	View
Mean Well LDC-80DA2 Linear LED Driver 80W 700~2100mA Adjustable Output - DALI2	80W	60V	1.4A	Indoor	View
Mean Well LDC-80DA Linear LED Driver 80W 700~2100mA Adjustable Output - DALI	80W	60V	0.7A	Indoor	View
Mean Well LDC-80B Linear LED Driver 80W 700~2100mA Adjustable Output - Dimmable	80W	60V	0.7A	Indoor	View
Mean Well LDC-80 Linear LED Driver 80W 700~2100mA Adjustable Output	80W	60V	0.7A	Indoor	View
Mean Well LDC-55DA2 Linear LED Driver 55W 500~1600mA Adjustable Output - DALI2	55W	60V	1.05A	Indoor	View
Mean Well LDC-55DA Linear LED Driver 55W 500~1600mA Adjustable Output - DALI	55W	60V	0.5A	Indoor	View
Mean Well LDC-55 Linear LED Driver 55W 500~1600mA Adjustable Output	55W	60V	0.5A	Indoor	View
Mean Well LDC-35DA2 Linear LED Driver 35W 300~1000mA Adjustable Output - DALI2	35W	60V	0.7A	—	View
Mean Well LDC-35B Linear LED Driver 35W 300~1000mA Adjustable Output - Dimmable	35W	60V	0.3A	Indoor	View
Mean Well LDC-35 Linear LED Driver 35W 300~1000mA Adjustable Output	35W	60V	0.3A	Indoor	View

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Key Features

✓Constant Power mode output

✓Metal housing design

✓Full power at 70~100% max current

✓Built-in active PFC function

✓Flicker-free design

✓No load/standby power consumption<0.5W

✓Output current level pre-settable

✓Function options: 3 in 1 dimming(dim-to-off); DALI interface, push dimming

✓Typical lifetime>50000 hours

✓SELV and isolated

✓Class 2 power supply

✓5 years warranty

Mean Well LDC-35DA Linear LED Driver 35W 300~1000mA Adjustable Output - DALI

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Mean Well LDC-35DA Linear LED Driver 35W 300~1000mA Adjustable Output - DALI

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