Meanwell HLG-320H-42A 320W Constant Voltage + Constant Current LED Driver – Overview

The Meanwell HLG-320H-42A is part of the HLG-320H series, a high-performance 320W AC/DC LED driver that supports both constant voltage (CV) and constant current (CC) output modes. Designed for versatility and reliability, it operates on a wide input range of 90–305VAC, making it suitable for various global power standards.

With an impressive efficiency of up to 94%, the HLG-320H series delivers powerful performance in a fanless design, enabling operation in extreme temperatures from -40°C to +90°C under free air convection.

The rugged metal housing and IP67/IP65 protection rating ensure durability in both indoor and outdoor environments, offering excellent resistance to dust, water, and harsh operating conditions.

Equipped with multiple function options such as potentiometer-adjustable output and 3-in-1 dimming control, this driver provides exceptional flexibility for commercial and industrial LED lighting systems.

Key Features:

• Dual mode Constant Voltage + Constant Current output

• Metal housing with Class I insulation design

• Built-in active PFC (Power Factor Correction)

• IP67 / IP65 rated enclosure for indoor/outdoor use

• Output adjustable via onboard potentiometer

• 3-in-1 dimming support for flexible lighting control

• High efficiency up to 94% with fanless cooling

• Wide operating temperature range: -40°C to +90°C

• Typical lifetime: Over 62,000 hours

• 7-year warranty

Typical Applications:

• Outdoor LED signage and displays

• Industrial and commercial lighting

• Architectural and tunnel lighting

• Street lighting and parking lot illumination

• High-bay and low-bay LED fixtures