There are a few out there. Here are just two. The trick is to determine the "functionally equivalent" part. There are also some suppliers which offer LED 'stacks' with side LEDs to provide a more balanced "throw". The problem I have is I have never burned out a replacement incandescent dash bulb. The second link has LEDs which are cost competitive with incandescents. Anything 2X that price is probably not cost efficient. Next is to determine how 'functionally equivalent' site two's bulbs are considering they only illuminate forward (light all comes out the end).