It is important to determine the real power requirements of your equipment before buying an investor.
Size suitable for your specific application inverter depends on the amount of wattage that require their devices.
This information is usually printed somewhere on a electronic devices, but generally it can only shows voltage and amperage ratings. If you cannot find the specific powers for your devices, you’ll want to add them to get a minimum number. This number will be the smaller investor which one can meet your demands, so it is a good idea to add like 10% to 20% at the top and then buy an investor of that size or more large.
Some electronic devices and common powers:
Device | Wattages |
Cell phone | 50 |
Hair dryer | 1000 |
Microwave | 1200 |
Mini fridge | 100 (500 on startup) |
Laptop | 90 |
Portable heater | 1500 |
Light bulb | 50-100 |
Laser printer | 500 (2,000 peak) |
LCD TV | 250 |
These figures vary quite a device to another, so never trust totally in a list like this to decide how much power you need for a inverter. While these numbers may be helpful in an rough estimate.