There are many types of lighting devices including the familiar incandescent lamp, LED (light emitting diode), HID (high intensity discharge), fluorescent, and induction lamps. All of them can convert AC power (and in some cases DC power) into light. But there are differences in efficiency, complexity of construction, lifetime, brightness and in the color of emitted light. However, the testing of all of these different types of devices can be done using digital oscilloscopes. This article will discuss testing of induction lamps. Download now.