First, the review unit works as it should and looks good quality. Dual function as a fluorescent lamp tester and non-contact voltage tester saves space in your tool box. However, I only give 4 stars because the tester arrived with a leaking battery. Luckily the battery was wrapped in plastic and didn't damage the tester in any way! I would have thought Amprobe could at least pay for $50+ test devices and ship them with a quality battery or even no battery at all! At least without a battery, there is no risk of damage to the device.