Ah so Cree is a brand. I was wondering what that meant. I saw someones light on a bike last night and i asked him about the lumen. He said his is 250 lumen and he said it is illegal to go over 300 lumen with a road bike(maybe in australia). He said you can have more if off road. Anyway i cant probably afford the cree one i would say. I pulled the light i have apart and its not the button that turns the light on/off that is causing the issue. Well still could be but it seems to be functional. Everything looks undamaged inside like new. Will keep investigating. Since this is an electrical issue i will try someone i know that is good with that sort of thing maybe next week :0)