you're not looking for a "brake light bulb", you're looking for a bulb that fits a particular base - any single element bulb [one 'dot' on bottom] will have a different 'bayonet' position than a dual filament bulb [2 'dots' on base], to prevent getting the bulb in wrong - I think 1156 will fit the original socket in your housing, 1157 requires a socket change
the 1157 is 32 candlepower and 3 cp [see why using both filaments is no help?]
the 1156 single element is 32 cp, don't know if there's anything brighter
Bill
