It is suitable for a 1999 Honda Astrea Supra. It illuminates much better than the halogen bulbs I had installed (yellow and white). The color is beautiful, white-blue. I have full brightness when I open the throttle. The brightness decreases slightly when I turn on the flashers or when I press the brakes. It has two brightness levels. I haven't had any issues with the battery (sealed type). This lamp doesn't solve the eternal problem of old motorcycles, but I consider it the best possible solution. In combination with a transparent lens, I can see better than before.