the warning light looked promising, but based on my experience, it's not worth it. The only pro I can think of is that the light is bright, but that's about it. The cons, however, are numerous - it is not at all user-friendly, installation was a nightmare, and it doesn't even last long .Its a shame because I was hoping it would be a good addition to my automotive emergency kit, but it's just a waste of money..See full review