The power's out. It's still 30-plus degrees. You've got a fan, but it needs a wall socket that's currently dead. That's the moment this Katabat earns its keep. The 14-inch blades oscillate and push serious air, and because it runs off the built-in rechargeable battery, it keeps going when the grid doesn't. You can also run it off 12V – the car adapter's in the box – so a hot night in the caravan or a job site without power is covered. There are 10 white LEDs on board that double as a room light when the lights are out too. A moulded handle makes it easy to carry from the garage to the kitchen table. If the battery does eventually wear out, JAYCAR sells the GH1281 as a direct spare. Add to cart and you'll have a plan for the next brownout before it happens