They look almost identical: a strip with a row of outlets and a cord. But a surge protector and a basic power strip do very different jobs, and confusing the two can cost you expensive electronics during a storm or power spike. Here's how to tell them apart and use each correctly.
What a power strip actually does
A plain power strip is just an extension cord with multiple outlets. It splits one wall socket into several. That's it. It offers no protection if a sudden jolt of electricity comes down the line. If lightning strikes nearby or the grid hiccups, whatever's plugged in is on its own.
What a surge protector adds
A surge protector includes components that absorb sudden voltage spikes and divert the excess away from your devices. When a surge hits, it takes the blow so your electronics don't have to.
- Protects against lightning-related spikes and grid fluctuations.
- Rated by how much energy it can absorb, measured in joules.
- Wears out over time, so it eventually needs replacing.
How to tell them apart
Check the label or box. A surge protector will advertise a joule rating and surge protection. If it doesn't mention either, assume it's just a power strip.
What to plug into which
Use surge protectors for anything pricey or sensitive: computers, TVs, game consoles, and home theater gear. A basic strip is fine for lamps and other low-stakes devices.
The takeaway
Spend a few extra dollars on real surge protection for your important electronics. It's cheap insurance against an expensive surprise.