Fluorescent lamps use what to make light?

Fluorescent lamps use what to make light?

Fluorescent Lights have been commercially available since the 1930s as long Fluorescent Tubes. A smaller bulb like CFL (Compact Fluorescent Light) only became widely available in the 2000s. These lights use a mercury vapor (steam) inside the tube; electricity is applied within the tube, which causes the mercury vapor to emit UV light, or more accurately UV radiation. The UV radiation hits the inside surface of the tube which is coated with a phosphor material. The UV radiation causes the phosphor to glow.

Fluorescent lighting uses UV radiation to make light 1

Their advantage is that they are cooler and more energy efficient than Incandescent.
Their disadvantage is that Mercury is dangerous - if the bulb is broken, it can present a health hazard. Used bulb disposal is also problematic.

Fluorescent lighting uses UV radiation to make light2

Fluorescence uses light (or electromagnetic radiation) to make light - it's related to phosphorescence (watches).

Arc Lamp - Fluorescent Lights are a type of Arc Lamp that produces light, typically through a non-conductive medium, like air. Lightning is similar, a type of natural Arc Lamp.

UPRtek survival handbook-more about Fluorescent
UPRtek survival handbook-more about Arc lamp


Fluorescent lighting uses UV radiation to make light3

1. Electricity warms the tube.
2. Mercury turns to vapor.
3. Vapor is excited by further electricity and UV light is emitted.
4. UV light hits the inside surface of tube, which is coated with Phosphor material, which then glows (emits light) - i.e. Using light (UV light) to make visible light.

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Related FAQ
Let's have an over view of the 3 common types of artificial light. The traditional Incandescent bulbs were first on the scene. Next, came the Fluorescent Lights and then LED Lights, both bringing advantages in bulb lifespan and energy savings. However, they are all three, still in use with their own distinct advantages and disadvantages. Read More
Incandescent lighting uses heat (thermal radiation) to produce light. Sunlight and Candle light are generated in this way. Incandescent Light Bulbs also generate heat (thermal radiation) through a "filament". The filament heats up to produce light like a candle. Read More
Artificial Lighting Advantages & Disadvantages

Practically and economically speaking, LEDs seem to have a huge advantage and this is why most newly built facilities in developing countries are choosing LEDs for most of their environment lighting (e.g. factories, offices, libraries, museums).

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UPRtek Fluorescent lamps use what to make light? Introduction

United Power Research Technology Corp. is Taiwan supplier and manufacturer in Optoelectronics Industry. UPRtek has been offering our customers high quality Spectrometer, Color Meter, Spectral PAR Meter, Spectral Color Meter, Spectrum, LED Meter, Spectradiometer, LED Measurement, LED light testing since 2010. With both advanced technology and 8 years experience, UPRtek always make sure to meet each customer's demand.


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