I changed my Roxim RS3 to RX5. It is brighter and has wider angle light distribute. There are some brighter headlight in the market but dont spread the light like Roxim. With 4pcs of AA battery has longer runtime than RS3 (working with 2pcs and it is not enough). I love automatic headlight function. Only the RX5A version do it. Premium has white DRL, Cruise version has blue/Red.