High Intensity Discharge (HID) Ballast Testers - Avoid the hassle and expense of replacing a ballast or ignitor unneccessarily. These testers have a convenient light display, indicating whether the ballast or ignitor has failed.
- Available in medium or mogul base
- Tester lights indicate which unit has failed
- For High Pressure Sodium (HPS), Metal Halide (MH), and Mercury Vapor (MV) fixtures
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