Made from a stretchy plastic, the B’Twin VIOO 100 is a brilliantly simple light to have to hand if you end up out later than planned, or your main light stops working, and it’s easy to attach to any part of your frame, bars or even helmet. Running off two small watch batteries, it has a run time of up to 44 hours, has two modes and a seven-metre beam. It’s just the thing to help alert drivers to your presence, and for the price, you couldn’t ask for more.

Price: £3.99, available from Decathlon.