19V 2.1A LG Monitor Power Supply - 40W AC/DC Adapter for LED/LCD Screens

Prototyping and Engineering Tips from Robogears

• Confirm the Center Pin: CRITICAL: LG and Samsung monitors often use very similar-looking 6.5mm plugs. Always check if your monitor's power port has a small pin in the center. If the port is "hollow," this adapter will not fit.

• Wattage Compatibility: This is a 40W adapter (19V×2.1A). You can safely use this to replace an LG adapter rated at 19V 1.3A or 1.7A, as the monitor will only draw the current it requires. Do not use it to replace a 3.42A or higher-rated adapter, as this will lead to overheating and failure.

• Voltage Sensitivity: Display electronics are precision-tuned for 19V. Avoid using generic "Multi-voltage" adapters set to 18V or 20V, as even a 1V difference can trigger a protective shutdown or damage the internal LED driver of your LG screen.

• Heat Dissipation: While this SMPS runs relatively cool, avoid covering it with papers or placing it on carpets during use. Maintaining airflow around the plastic casing is essential for the longevity of the internal electrolytic capacitors.

• DIY Use Case: If you are repurposing this for a DIY project (like a high-power 19V soldering iron or a laptop-style workstation), the center-pin design requires careful soldering if you are replacing the jack. The center pin is the Positive (+) lead.

Package Includes

• 1 x 19V 2.1A LG Adaptor

Disclaimer: For indoor use only. Do not expose to water, moisture, or extreme heat. Always verify that your monitor's power requirements (usually listed on the back label) match 19V DC before connecting the adapter. Disconnect from the mains during lightning storms to prevent surge damage.