Mean Well HLG-40H-24B 40W 24V Power Supply - Dimmable

The HLG-40H is a 40W Mean Well power converter (input range: 90~305VAC).

Key Features

✓ Input voltage range: 90~305VAC
✓ DC output voltage adjustable ±10%
✓ 3.75KVAC reinforced I/O isolation
✓ Cooling by free air convection
✓ Protections: Short circuit / Over voltage / Over temperature
✓ Active PFC — meets international energy efficiency regulations
✓ Safety approvals: Note.8 SAFETY & EMC
✓ 3 years warranty

Frequently Asked Questions

Can I use the HLG-40H-24B to power 24V LED strip lighting outdoors?

Yes. The HLG-40H-24B outputs 24V at up to 1.67A (40W) and carries an IP67 waterproof rating, so it can be mounted in locations exposed to rain, snow, or temporary water pooling. Its aluminium casing and -40°C to +80°C operating range handle harsh outdoor conditions year-round.

Is the HLG-40H-24B suitable for dimmable 24V landscape lighting?

Yes. The HLG-40H-24B includes a 1-10V/PWM dimming input, allowing you to pair with a compatible dimmer to adjust brightness for garden path lights, accent lighting, or other 24V landscape fixtures. Its IP67 waterproof rating makes it reliable for in-ground or exposed mounting.

Can I use the HLG-40H-24B to drive a small 24V LED channel-letter sign?

Yes, as long as the sign modules draw no more than 40W total at 24V. The HLG-40H-24B operates in constant-current mode with a CC voltage range of 14-24V, so it accommodates modules that may run at slightly lower voltages. The IP67 rating is well-suited for exterior-mounted signs.

How many meters of 24V LED strip can the HLG-40H-24B drive?

It depends on your strip's power consumption per meter. The HLG-40H-24B provides up to 40W at 24V. For a strip rated at 10W/m, you could run 4 meters (40W / 10W per meter = 4m). For a 5W/m strip, up to 8 meters. Always check your strip's rated power per meter and stay within 40W total.

Can the HLG-40H-24B handle being installed in a wet underground junction box?

Yes. IP67 means the enclosure can withstand temporary immersion in water up to 1 meter deep. It is suitable for underground vaults, wet junction boxes, or any location where standing water may occasionally occur. The -40°C to +80°C operating range also covers extreme temperature environments.

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Model	Power	Voltage	Current	IP Rating
Mean Well HLG-40H-24 Power Supply 40W 24V 1.67A	40W	24V	1.67A	IP67	View
Mean Well HLG-40H-24A Power Supply 40W 24V - Adjustable 1.67A	40W	24V	1.67A	IP65	View

Customer reviews

4.9 Reviews verified for authenticity

5 ★ (19)

4 ★ (2)

3 ★ (0)

2 ★ (0)

1 ★ (0)

Reviewed by 21 customers across the HLG series

Best outdoor driver we use
By Hemi K.|2026-06-22✓ Verified Buyer
Model: HLG-240H-24Quantity: 6
HLG-240H-24 is IP67 and just keeps going. Powering a car-park flood install, 8 months no issues.
Premium, worth it
By Bright Spark|2026-06-01✓ Verified Buyer
Model: HLG-185H-24Quantity: 4
Built-in PFC, runs cool, DALI option on the B model. Our go-to.
Flawless
By Olivia D.|2026-05-09✓ Verified Buyer
Model: HLG-320H-48Quantity: 2
Drove a 48V architectural run for months, dead silent.

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Key Features

✓ Input voltage range: 90~305VAC

✓ DC output voltage adjustable ±10%

✓ 3.75KVAC reinforced I/O isolation

✓ Cooling by free air convection

✓ Protections: Short circuit / Over voltage / Over temperature

✓ Active PFC — meets international energy efficiency regulations

✓ Safety approvals: Note.8 SAFETY & EMC

✓ 3 years warranty

Mean Well HLG-40H-24B Power Supply 40W 24V - Dimmable 1.67A

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Mean Well HLG-40H-24B Power Supply 40W 24V - Dimmable 1.67A

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