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The way an electric tube, or fluorescent, light works is really very interesting. Most "regular" light bulbs are incandescent. Their source of light is the glow of electricity passing through a very thin wire known as a filament that is suspended in a vacuum. It glows with a "warm" color in the yellow/orange range. With a fluorescent tube there are two filaments, but they do not directly provide the light source, and a Mercury vapor instead of a vacuum.
On each end of a long glass tube are coils using electricity regulated by a ballast. The tube is filled with mercury vapor and phosphor. The electricity passing through the filaments excites the mercury vapor causing it to glow with ultraviolet (black) light. Ultraviolet light is not visible, but it does cause cause certain chemicals and colors to glow or fluoresce. If you take laundry detergent with phosphorous in it, for example, and place it under an ultraviolet (black) light, the phosphorus glows cold white. So by adding Phosphorus to the tube of Mercury vapor it will also glow when the vapor is excited electrically.
The result is a lot of light for a much lower amount of electricity, and excess heat. The color temperature is very close to that of daylight but a little cooler, in the blue/green range. That makes growing plants under fluorescent light more effective also. The negatives are that most "tube lights" can not be dimmed with a wall dimmer-switch, and the ballasts, that controls electrical flow, do have a tendency to burn out or fail after a time.
What else can I help you with?
What does tube mean?
an electron tube containing a near-vacuum that allows the free passage of electric current.
The principle underlying the creation of a space charge in the x-ray tube is?
Thermionic Emission
Is tube light capacitive load?
no
Why condenser used in tube light?
A tube light uses a condenser which is the old term for a capacitor. It functions as a small battery in a circuit.
What is inductance of tube light choke?
0599H
What is principle of fluorescent tube light how choke gives transient voltage across tube at the time of starting?
11000
How discharge tube is different from tube light?
A discharge tube is a type of gas-filled tube that emits light when an electric current passes through it, commonly used in neon signs or plasma displays. On the other hand, a tube light is a type of fluorescent lamp that uses a phosphor coating inside a glass tube to produce light. While both types of tubes rely on gas and electric current to produce light, they differ in their construction and application.
What Material coated inner side of electric tube light?
rock salt
What is an electric tube?
a tube that gives of electric
What device produces light by running an electric current through a gas?
A fluorescent light bulb produces light by running an electric current through a gas such as mercury vapor inside a glass tube. The electrons collide with the gas atoms, creating ultraviolet light which then excites the phosphor coating on the inside of the tube to produce visible light.
Which gas is found in tube light?
Tube lights contain a small amount of mercury vapor gas, which is used to produce ultraviolet light when an electric current passes through it. This ultraviolet light then causes the phosphor coating inside the tube to fluoresce and emit visible light.
What is Working principle of venturi tube?
Venturi tube is used to for flow measurement. It work on the principle of Bernoulli Equation.
What is gujarati meaning of tube light?
The Gujarati meaning of "tube light" is "ટ્યુબ લાઇટ" (pronounced as "tyub light"). It refers to a long, cylindrical electric light that provides illumination, commonly used in homes and offices. In everyday conversation, it may also be referred to simply as "લાઇટ" (light).
How tube bulb work?
A tube bulb works by passing an electric current through a gas or vapor inside the tube, which causes the gas particles to become excited and emit light. The tube is coated with a phosphor material that absorbs this light and re-emits it as visible light. The specific type of gas, voltage, and phosphor coating determine the color and intensity of the light produced.
What is ballast in tube light?
Ballast is a device used in fluorescent lighting fixtures to regulate the electric current flowing through the light tube. It helps to stabilize the electrical current and control the voltage to ensure the proper operation of the light, including starting and maintaining its brightness. Without a ballast, the tube light would not function correctly.
How does a tube light works?
tube light woks like a tube light....
How a tube light works?
tube light woks like a tube light....
