Electric bike and scooter riders, this Y-YUNLONG headlight is exactly what you need for safer night riding! Designed to work with 36V and 48V systems, this powerful 4-LED light throws an ultra-bright beam that illuminates up to 20 meters ahead. But here's the cool part - it also includes a built-in horn with a super-decibel copper buzzer that hits between 115-125db, so you can alert pedestrians and vehicles without shouting. The ABS construction is lightweight yet durable, and the waterproof design means rain won't stop you. Measuring about 10x6x5cm, it's compact enough for most handlebars without being bulky. Installation is straightforward, and it works on electric bikes, scooters, folding bikes - basically any electric two-wheeler. Seriously, having both a bright light AND a loud horn in one unit is genius for urban commuting or trail riding. The quality feels solid, and the price is right for the features you get. Ride safer day or night with this all-in-one lighting and alert system!