Excellent lights that require no modifications to sockets.
Ordered a set of 4 LED 194 lamps to replace the stock incandescent tail/side marker lights on my 1987 Buick Grand National to match the Digi-Tails LED taillights already installed. These plugged right in, match the color of the Digitails, and are brighter than the incandescent bulbs they replaced. They work great!!!