I recently purchased this Electra Bullet Headlight from Amazon.com and it adds major points to the look of the bike. It uses a 12v battery that sits inside the housing. As for how bright it is? It doesn't emit much visible light onto the road so I still use my other lights in dark areas. But the reflective material behind the bulb makes the light look extremely bright. I've had many people tell me I look like an actual motorcycle with the headlight coming right at them. It uses a Xenon LED bulb and it has an HID purple look to it.