As seen on Gearz with Stacey David. If you're looking for the best and brightest lighting for your car, look no further. Replacement 1156 WHITE "Plasma" LED back up light bulb for your 69-70 Cougar or Mustang or anything else you might have that takes an 1156 bulb (or other bulbs with the same base configuration, such as 97 and 1003 bulbs). Basically good for every car from 1950 to 1990. Will also work with no modifications in 1967 - 1973 trunk and hood lights, 1967 - 1968 interior C-pillar "opera" lights, and will also work in your under-dash sockets 1967 - 1969 with minimal modifications to the bracket and socket. See pictures below.
To use these bulbs as under-dash lights, you need to modify the sockets a little. Here's how: