Review on COMP Cams 5326 Spark Viewer by Anil Jaimes

Some junk. It is the cheapest plastic imaginable. In comparison, the Dollar Store flashlight looks like a mag flashlight. You'd think it would put out a decently bright light with two Type-C batteries. Incorrect. The lamp emits a faint light that is unlikely to illuminate the top of the spark plug, let alone the bottom of a standard spark plug. I have a plastic lens that is uneven so you don't get a clear image across the entire lens. You have to move the fork to find a spot where a small area is in focus. This tool is much more expensive than cheap plastic junk. Should be around $3.99 for what you get.