What is a UVC ballast?

What is a UVC ballast?

These ballasts are designed to run high output UV germicidal light bulbs. They provide more UV output wattage for the same length of lamp compared to standard output. High output UV bulbs are often more expensive than standard output, and fewer manufacturers make HO lamps.

Are UV lights AC or DC?

DC-AC Sine Wave Inverters for Ultraviolet (UV) Lamps Inverter outputs are constant current type with sinusoidal drive current, which results in an excellent crest factor and long lamp life.

How long does a UV ballast last?

According to the Certified Ballast Manufacturers Association, the average Magnetic ballast lasts about 75,000 hours or 12 to 15 years with regular use. In contrast, the Electronic ballast can last up to 20 years.

Do UV light need ballast?

General use light bulbs have a filament. The electricity causes the filament to glow, producing light. Medium pressure UV lamps do not have a filament. Then, once the mercury is ionized, the ballast reduces the voltage and amperage required to keep the mercury ionized and emit a stable stream of UV light.

Are UVC bulbs fluorescent?

They are clear because they have no fluorescent phosphor coating on the inside of the lamp. With the glass and no phosphor coating, the 253.7 nm ultraviolet light produced by the mercury arc is passed outside the lamp and used for sterilization rather than general light.

Is UV light in HVAC safe?

Direct exposure to the UV-C used in HVAC systems is hazardous, particularly to the skin and eyes. With the right conditions and proper installation, UV lights can be very effective at killing viruses, mold, and bacteria. The two working together can make your home or office building a much healthier place.

How much does UV light cost?

Coil UV lights have a light cost ranging between $60-$285, an installation cost ranging between $100-$225, a lamp cost between $10-$60 and an energy cost between $15-$30.

How can you tell if a UV bulb is blown?

Check the two poles on one end with a ohm meter for continuity and the two poles on the other end the same way. Open or infinite resistance means it is bad. Everything between the two ends is just gas. If the bulb has a gas leak (rare) it will also fail, but most times one end or the other is burnt through.

Is there a difference between UV light and blacklight?

Strictly speaking, a black light is a kind of UV light. Black lights emit ultraviolet radiation (UV light). UV is radiation with a wavelength just shorter than that of violet light, which is the shortest wavelength of light in the visible part of the electromagnetic spectrum.

Does a UV light use a lot of electricity?

Currently, most of these lamps operate at 300 to 600 watts per inch with some newer systems using lamps that generate up to 1000 watts per inch. So a 30 inch UV bulb may be capable of an output of 30,000 watts. They also operate at very high temperatures (850 to 950 Celsius or 1550 to 1750 Fahrenheit).

What kind of ballast do I need for a UV lamp?

This is a UV B (365nm) lamp with two pins. A bi-pin tube is designed for conventional (inductive) ballast and is incompatible with electronic ballasts. Internally it has a capacitor that acts as built-in starter. You can connect it with single ballast rated at approx 9W (usually one ballast covers range from 5 to 11W).

How to test a pond filter UV lamp and ballast?

If you are measuring 240V at the lamp socket with no lamp installed, the ballast would appear to be okay. This type of bi-pin lamp contains a capacitor that causes the filaments to heat at turn-on thus acting as a starter. If you are still concerned about the ballast you can test it with a similar but visible light 9W CFL lamp.

Why do UV tubes only have 2 electrodes?

The ballast has 4 electrodes, but the UV tubes have only 2. I’m guessing it’s because the electrodes in the UV tubes don’t have to be heated. What should I do with the extra wires? Short them like this? Won’t it melt the heating circuitry then? Will this expose the PCB adequately? This is a UV B (365nm) lamp with two pins.

How big of a ballast do I need for a 9W light bulb?

You can connect it with single ballast rated at approx 9W (usually one ballast covers range from 5 to 11W). In your case you would have to connect 3 or 4 bulbs in parallel (ballast is a current shift component) and ballast in series.