HLG-120H-48B

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LEDs (Light Emitting Diodes) have become increasingly popular as the primary light source in numerous applications and are used in display screens, backlit displays, outdoor lighting, automotive lighting, emergency lighting, architectural lighting and general illumination. To ensure reliable and efficient operation of LEDs, LED drivers are needed. One of the most popular LED drivers is the HLG-120H-48B, which is designed to provide robust and reliable power for a wide range of applications.

The HLG-120H-48B is an adjustable-output current LED driver that provides a constant current output to drive LED lighting applications. This is an isolated, high-efficiency, step-down LED driver that has been designed specifically to drive high-power LEDs in constant-current mode. It is available in a range of power levels, from 10 to 120 watts, and has an adjustable output current of up to 48 amps. It is capable of delivering a maximum output power of 1160 watts.

The HLG-120H-48B features an active PFC (Power Factor Correction) circuit, which reduces the power losses in the power supply and increases the power efficiency. This efficiency is further enhanced by the built-in high efficiency power conversion circuit, which is up to 97%. The built-in safety features include over-voltage protection, short-circuit protection and over-temperature protection. This driver is also RoHS (Restriction of Hazardous Substances) compliant.

In terms of installation, the HLG-120H-48B can be installed either indoors or outdoors, as it is IP67 waterproof, dust and insect proof. It has a wide input voltage range of 90 to 305 volts AC, and a wide operating temperature range (from -40°C to +70°C). The design of the unit is compact and lightweight, with a width of only 59mm and a length of 279mm.

The operating principle of the HLG-120H-48B is fairly straightforward and is based on the Boost Power Factor Corrected (BPFC) circuit. This is a type of PFC circuit which uses a Buck-boost topology to regulate the voltage output while keeping the power factor as close to unity as possible. The circuit produces a stable current output, which is regulated by the primary side voltage to maintain a constant output current which is set by a potentiometer. This ensures that the current output of the circuit remains constant despite variations in the load.

The HLG-120H-48B is suitable for a wide range of LED lighting applications, such as street lights, high bay lights, down lights, tunnel lights, floodlights, decorative lighting and industrial lighting, among others. Due to its high efficiency, excellent light output and wide operating temperature range, the HLG-120H-48B is an excellent choice for applications that require constant current output and reliable performance.

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