Inverter vs. UPS: What's the Difference?
Read the comparison below, or explore it visually. Create a visual lesson comparing inverter and ups using available credits or plan allowance.
A home inverter is built to run household loads such as fans, lights and a TV for several hours during a power cut, while a UPS (uninterruptible power supply) is built to switch over almost instantly so that a computer keeps running for a few minutes. Both convert battery DC into AC; they differ mainly in switchover speed, battery size and what they are meant to power.
At a glance
| Inverter | UPS | |
|---|---|---|
| Main purpose | Long backup for household appliances | Instant, short backup for computers |
| Switchover time | Small delay, often several milliseconds | A few milliseconds, or zero in online models |
| Backup time | Usually hours | Usually 5 to 30 minutes |
| Battery | Large external lead-acid or lithium battery | Small battery usually built into the unit |
| Typical loads | Fans, lights, TV, router, fridge | Desktop PC, monitor, modem, servers |
Which should you use?
An inverter is the right choice for a home in an area with regular power cuts lasting an hour or more, keeping ceiling fans and lights running through a summer outage.
A UPS is the right choice for a desktop computer or office server, giving enough time to save work and shut down safely before the battery runs out.