Busch and Muller Topfire helmet lights

Busch and Muller's Topfire helmet lightsare a really neat way to get yourself a bit of extra visibility on the bike. They're easy to fit, effective and weigh next to nothing.

The kit contains four single red LEDs connected to a battery compartment housing a cheap-to-replace 2032 button cell. The LEDs sit in the rear vents of your lid, held in place by double sided sticky tape, and the battery clips to a strap or, in my case, the centre strut of the rear retention system.

Once it's on it stays put. I was worried that the tape wouldn't hold the LEDs in the wet, but there's been no end of wet and they're still there. The battery compartment twists to turn on and off, it's easy to do without looking and with gloved hands, no more difficult than adjusting the retention system on a normal helmet.

There's one mode, flashing (twice a second), and battery life is a claimed 100 hours. I've been using them for a month of night-time commutes home and they're still going strong.

Once the battery dies you can pick up 2032 cells online for next to nothing. The LEDs aren't super bright but they're very effective in the dark and a useful bit of extra visibility now the nights have drawn in. And at 18g you're hardly going to notice the extra weight, are you?

Verdict

Simple and effective kit for a bit of extra night visibility.