Mean Well NLDD-1050H DC/DC Step-Down LED Driver 1050mA 35.7W

Lighting designers and electrical contractors often need a compact, efficient way to drive high-power LEDs from a low-voltage DC bus. The Mean Well NLDD-1050H is a non-isolated step-down DC/DC converter that delivers a constant current of 1050 mA, making it ideal for LED lighting systems in industrial, commercial, or architectural applications where a stable DC source of 6-36 V is available.

Key specifications

• Input voltage range: 6-36 V DC
• Output current: 1050 mA (1.05 A)
• Output voltage range: 2-34 V DC
• Maximum output power: 35.7 W
• Efficiency: up to 96%
• Dimming: 3-in-1 (0-10 V DC, PWM, resistance)
• Topology: step-down (buck), non-isolated
• Protection: short circuit, over temperature
• Operating temperature: -40°C to +65°C
• Mounting: through-hole (PCB mount)
• Built-in EMI filter
• Compliance: UL/cUL, CE

Why choose it

The NLDD-1050H combines high efficiency with a wide input voltage range, allowing it to be used in various low-voltage DC systems. Its 3-in-1 dimming capability provides flexible control for lighting scenes, and the built-in EMI filter helps meet electromagnetic compatibility requirements. The compact through-hole package simplifies PCB integration.

Ideal use cases

• LED lighting fixtures powered from 12 V or 24 V DC buses
• Architectural and accent lighting with dimming needs
• Industrial machine vision lighting
• Portable or battery-powered LED applications

Good to know

The converter operates in constant current mode, ensuring stable LED brightness across the output voltage range. It is designed for PCB mounting and requires adequate heat dissipation for full power operation.