●【Easy Reminder】: Our bicycle rear lights are designed for maximum safety and feature a bright red LED light that ensures that you are visible when riding at night. This red light helps to make you more visible to other vehicles and pedestrians on the road. ●Long battery life: forget about frequent charging. Our bicycle rear lights have excellent battery life, so you can use them for up to 4 hours on a single charge. This means you can take multiple rides without having to charge frequently, providing long-lasting support for your adventures. ●【Various Mounting Options】: Arkham red LED bike tail light can be attached to the bicycle saddle, backpack or bicycle helmet. This makes it versatile and offers you safety for your night trips in different situations. ●Waterproof: No matter what the weather, you can rely on our bicycle rear lights. The IP4 waterproof rating effectively resists rain and humid weather and ensures that you have reliable lighting in all conditions. ●Quick installation: the installation of our rear lights is easy and requires no specialist knowledge. It is suitable for a variety of bicycle models and comes with a set of easy-to-install accessories so you can install it quickly and enjoy a safer driving experience in no time.