Are there any leds that have throw comparable to a xennon light. I'm concerned about the lights that have the xennon bulb assembly how they just go out without any warning. sometimes i just don't have an extra assembly with me and i don't want to be in a situation where i need a light and the bulb goes out. I have a keymate and a sl tt 3c and like them for an area light but sometimes i need to see across the street.