Good question, surprised the quantity of bulbs needed wasn't mentioned in either of the projects linked above. If anyone has intentions of using 194 LED replacements, there are a few important details if you want uniform lighting while keeping the stock green back lighting. Multi sided SMD type bulbs must be used for consistent brightness, and warm white 3000k bulbs to retain the green color. 6000k daylight or cool white bulbs will change the dash color blue unless modifications are made. As koda2000 mentioned in an earlier thread, most LED's are very bright, almost excessively IMO, and will usually not dim completely using the rotary control. While the cluster's out, it's also a good time to remove the clear lens bezel to clean and dust. Just be careful around the delicate gauge needles, and not to damage the soft plastic lens that is prone to scratching.