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No, just an inert gas and Mercury vapor at close to atmospheric pressure. Without the inert gas it would be near vacuum, as very little mercury is needed.

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Q: Is a fluorescent bulb is filled with gas at a high pressure?
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Is a fluorescent bulb filled with gas at a high pressure?

no


What are the different types of light?

Incandescent Lamps Light Emitting Diode Neon Lamps Fluorescent Tubes Compact Fluorescent Lamps Halogen Lamps Metal Halide Lamps High Intensity Discharge Lamps Low Pressure Sodium Lamps High Pressure Sodium Lamps


Can you use a 70 watt high pressure sodium bulb in a 150 watt ballast?

No, you can not use a 150 watt high pressure sodium bulb with a 70 watt ballast.


Does a 400W high pressure sodium bulb have silver in it?

The 400W high pressure Sodium bulb contains a silver lining inside the frame to give better reflection of light. However, no silver is found inside the bulb.


What is electronic blast for a CFL lamp?

The electronic BALLAST is a circuit that limits the current through the fluorescent bulb to the design value. It also provides a pulse of high voltage to start the bulb conducting when it is switched on.


What form of helium is filled in helium cylinders?

Gas under high pressure


Do you need a ballast for every type of HID bulb?

All high-intensity discharge (HID) bulbs, and all fluorescent bulbs, require a ballast, which is a device that limits current. It can raise the voltage and/or heat the bulb cathodes.


Which property is not important when selecting a material to use as a light bulb?

High vapor pressure


Which high intensity disharge bulb do you use to grow weed?

The bulb should be in the red end of the light spectrum. One HID lamp is the high pressure sodium lamp.


What is CFL mhl and hpmv lamps?

The abbreviations are CFL - Compact Fluorescent Lamp, MHL - Metal Halide Lamp, HPMV - High Pressure Mercury Vapor, and one more is HPS - High Pressure Sodium lamp


Is pharmacy technician a high pressure job?

Yes. You have to be sure that the prescription is filled EXACTLY.


Why do you use starter for an incandescent lamp?

The starter will send a delayed high voltage electricity to the gas within the fluorescent bulb that cause the gas to be ionized and conduct electricity.