Mean Well ELG-100-24A LED Driver

The Mean Well ELG-100-24A is a professional-grade LED driver designed for demanding indoor and outdoor lighting applications. Unlike cheap, unreliable power supplies, Mean Well drivers are built to last — with active PFC, surge protection, and a fully encapsulated IP67 housing that withstands rain, dust, and extreme temperatures.

This driver operates in constant voltage (CV) mode by default (24V fixed), making it perfect for standard LED strips, modules, and signage. However, it also supports constant current (CC) mode (adjustable via the internal potentiometer), giving you flexibility for high-power COB LEDs or custom arrays.

The "A" suffix indicates that this driver is dimmable via 3-in-1 dimming (PWM, 0-10V, or resistance). This means you can easily add brightness control with a compatible dimmer or automation system.

Key Features:

• Mean Well Brand: Industry leader — trusted by professional installers worldwide. 6-year warranty.

• 100W Output: 24V DC at 4.2A (100.8W max) — enough to power up to 8-10 meters of 60-LEDs/m LED strip (depending on density).

• Dual Mode (CV + CC): Can operate as constant voltage (24V) for LED strips OR constant current (adjustable 2.5A-4.2A) for series-connected LEDs.

• IP67 Waterproof: Fully encapsulated — dust-tight, protected against immersion up to 1 meter. Perfect for outdoor and damp locations (gardens, signage, eaves, greenhouses).

• Adjustable Output Voltage (VoADJ): Internal potentiometer allows fine-tuning of output voltage from 22V to 27V. Useful for compensating for voltage drop over long runs or matching specific LED requirements.

• Universal AC Input: 100-240V AC, 50/60Hz — works worldwide. Also accepts 277V AC for commercial installations.

• Active PFC (Power Factor Correction): >0.95 at full load — reduces harmonic distortion and improves energy efficiency.

• Surge Protection: 6KV/4KV surge immunity — protects your LEDs from lightning strikes and grid fluctuations.

• Dimmable (A-Type): 3-in-1 dimming — supports PWM, 0-10V, or resistance (10KΩ potentiometer). Integrates easily with smart home systems, analog dimmers, or building automation.

• High Efficiency: 90% efficient — runs cool, reduces electricity waste.

• Protections: Short circuit, overload, over-voltage, and over-temperature protection.

• Wide Operating Temperature: -40°C to +70°C (derated above +50°C) — works in freezing winters and hot summers.

• Certifications: CE, UL, CUL, ENEC, CCC, RoHS — compliant for commercial and residential use.

Technical Specifications:

What's Included:

• 1× Mean Well ELG-100-24A LED driver

• 1× Input power cable (region-specific, may not be included)

• 1× Output cable with pre-stripped wires

• 1× Installation manual

Applications:

Installation Notes:

• Ensure the driver is mounted with sufficient airflow (derating above +50°C ambient).

• For outdoor use, seal wire entry points with silicone (though IP67 rating covers the housing itself).

• The dimming wires (DIM+ and DIM-) can be left disconnected if dimming is not needed.

• Use proper gauge wire for output runs (14-18 AWG recommended for 4.2A).

• The driver is heavy — mount securely with screws through the mounting tabs.

Troubleshooting: