It works like a normal bulb but will automatically switch on during a power cut. It has a rechargeable battery and will give you a light for up to 3.5 hours. It works like a normal bulb but will automatically switch on during a power cut.

The good news is the bulbs are rechargeable, so you don’t have to keep using up batteries. The downside is you have to recharge the bulbs. They last about five hours, so it’s perfect for a little mood lighting in the evening