The TRACE is a rear bike light that goes the extra mile. It has 4 light modes for day and night riding and 300° visibility and a USB rechargeable 200mAh battery will last for 12-72 hours. Weighing just 33g, it’s not only light enough to be allowed on your road bike, but is also ideal for kids’ bikes and so small and light that you’ll barely notice it in your pocket should you need to remove it when you park up. Officially the TRACE has an IP44 rating making it weather-proof. But we tested it in a tank of water overnight (making sure the USB ports were sealed) and it is still working fine. Like we said, the TRACE goes the extra mile.