Night time is the perfect time to avoid the heat and the heavy traffic and just have a relaxing ride. Although safety is a bigger concern and you want to remain highly visible as well as light up those low light areas with an bright and durable LED bike light like this one your concerns can be vanquished.The brake light is pretty good works well when installed correctly. The signal lights for turning also work well. The horns sounds loud enough to notify other bike riders or walking people of your presence. - Patented product special design and convenient to use - With red braking light yellow direction lights - The horn sounds while turning and the braking light flashes when turned on - The tone of horn and turning signal can be change by turning the knob - Powered by 2x AA batteries