The power consumption of a computer monitor can vary widely depending on the type, size, technology used (such as LCD, LED, OLED, etc.), resolution, brightness settings, and additional features like built-in speakers or USB hubs.

Here's a rough breakdown of the power consumption you might expect from different types of monitors:

• Portable Monitors (around 12-16 inches): Usually around 4-10 watts.
• Smaller Monitors (around 19-22 inches): Typically consume between 15-30 watts.
• Medium Monitors (around 23-24 inches): Usually around 25-50 watts.
• Larger Monitors (27 inches and above): Can consume anywhere from 30 to over 100 watts, depending on the technology and features.

It's important to note that gaming monitors, high-resolution displays (like 4K), and professional-grade monitors with larger screens and higher brightness levels will often consume more power.

To find the exact power consumption of a specific monitor model, you should check the manufacturer's specifications, which can often be found in the user manual or on the company's website. The power consumption should be listed on the device's label as well, often in terms of both peak usage and typical usage. Additionally, many modern monitors come with energy-saving features or modes that can reduce their power consumption when they are not actively in use (e.g., sleep mode).