What Type Of Ballasts Offer Built-in Thermal Protection? Ballasts provided with built-in thermal protection are listed by UL as Class P ballasts. Under normal conditions, the Class P ballast has a case temperature not exceeding 194°F (90°C). The thermal protector must open within 2 hours when the case temperature reaches 230°F (110°C). What is a
Are Fluorescent Lights The Same As LED? Are fluorescent lights the same as LED? The two different technologies are entirely different methods of producing light. Fluorescent bulbs contain inert gas within the glass casing while LEDs are a solid state technology. Fluorescent lights produce UV radiation and then convert it into visible light through the
Can A Maintenance Man Change Lamps And Ballasts? A replacement ballast costs about $10-25 depending on capacity and brand. The bite is that an electrician trip charge (which includes 30 or 60 minutes work) is going to be $75-150 probably – for about 5 minutes work on each light fixture. Can I change a ballast