I am looking for the best operating flashing brake light bulb. So far I have seen two types. One that looks like a halogan bulb that flashes on and off after initial brake action. The second was an led multi bulb that rotates as the runniong lights are on, then flashes on and off for a couple of cycles. Any data on either one or, another model would be helpful. I want the most visable light I can fit in the tail/ brake light.