Alternative LED bulb for rear fog lights?
 

I have mixed emotions on LED bulbs. I see them in pep boys and the like with claims like ''super bright L.E.D.'' but when i get them home I don't notice a difference in brightness. Now a brake lamp is aprox 50 watt and the bulbs I am using for my rear fogs now is intended for a bright back up bulb and it is rated 50 watt and really does put off a bright glow but the bulb isn't made for use for extended periods of time.

So have you seen or used any LED lamps that are very bright or rated in watts?