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Why can't you dim fluorescent light bulbs?
Some fluorescent lamps (bulbs) can be dimmed, but they must be designed to be dimmable. The ballasts and electronics that drive the bulb have to be designed to work with a dimmer or they will not function properly and may overheat. When dimming fluorescent bulbs, many can't be faded smoothly from full to zero. Some will only go to a minimum like 5-20%. A dimmable compact fluorescent lamp will be labelled as being dimmble and can be connected to an ordinary dimmer. For tubes, the ballast has to be specailly designed to be dimmable.
What are CFL bulbs?
CFLs, or compact fluorescent lights, are an environmentally friendly alternative to incandescent light bulbs. Typically a CFL is powered by a ballast which sends current into the glass envelope filled with halogen gas. 'Halogen' is not actually a gas in itself but refers to a family of gasses that includes chlorine, bromine, astatine, fluorine, and iodine. As the electric current travels from the ballast into the envelope, the gas becomes exciting and emits photons. Interestingly, without the the white coating inside a CFL, known as a phosphor coating, you would not be able to see the light produced. It is only once the light passes through the phosphor coating that it becomes a wavelength visible to the human eye.
What time is tattoo in the navy?
5 minutes prior to TAPS or lights out
What is the efficiency of a fluorescent light bulb?
LEDs are solid-state lights that use light-emitting diodes as the source of light. They are semiconductors that glow when electricity is applied to it. The efficancy of LED package & products depends on many factors, which range from electrical effciency to internal quantum efficiency to spectral efficiency. http://www.emotiveearth.com.au/
What is 5 C's of visual design?
clear, complete, concise, connected, and compelling
How often do fluorescent lights have to be changed?
Depending on the size of the light and how it is used, a fluorescent light can have a lifespan of anywhere from 8,000 to 30,000 hours. Fluorescent lights tend to lose their brightness over time, so it is recommended to change the light bulb before it burns out completely.
What is series generator?
a series generator is 3 or 5 generator connected together
What is wrong with a 1989 Mustang LX 5L 5-speed if it has low beam and brake lights but no hi beam or tail lights or running lights or dash llights?
check your interior or instrument panel lights fuse, they usually are all connected and when the fuse blows they all go.
Does Julie and Matt get back together in season 5 of Friday night lights?
Yes. They end up getting married and living in Chicago together
How efficient is a compact fluorescent bulb?
about 5 times as efficient.
Fluorescent Light Fixtures?
form_title= Fluorescent Light Fixtures form_header= Add light to your home with fluorescent light. How many fixtures do you need?*= {1, 2, 3, 4, 5, More than 5} Is the fixture for a drop ceiling?*= () Yes () No Do you want the fixtures delivered?*= () Yes () No
Fluorescent Light Bulbs?
form_title= Fluorescent Light Bulbs form_header= Brighten up your home with fluorescent light bulbs! What wattage do you need?*= _ [50] How many bulbs do you need?*= {1, 2, 3, 4, 5, More than 5} Where will the bulbs be used?*= _ [50]
What are the 5 artificial sources of light?
Five artificial sources of light include incandescent bulbs, fluorescent lamps, LED lights, halogen lamps, and neon lights. Incandescent bulbs produce light through heating a filament, while fluorescent lamps use gas to emit ultraviolet light that excites phosphor coatings. LEDs, or light-emitting diodes, are energy-efficient and long-lasting, while halogen lamps are a type of incandescent light that uses halogen gas for improved efficiency. Neon lights consist of gas-filled tubes that glow when electricity passes through them.
Fluorescent Paint?
form_title= Fluorescent Paint form_header= Brighten up your life with fluorescent paint. What color would you like?*= _ [50] How many cans of paint do you need?*= {1, 2, 3, 4, 5, More than 5} Where will you be painting?*= _ [50] Di you want indoor or outdoor paint?*= () Indoor () Outdoor
Why can't you dim fluorescent light bulbs?
Some fluorescent lamps (bulbs) can be dimmed, but they must be designed to be dimmable. The ballasts and electronics that drive the bulb have to be designed to work with a dimmer or they will not function properly and may overheat. When dimming fluorescent bulbs, many can't be faded smoothly from full to zero. Some will only go to a minimum like 5-20%. A dimmable compact fluorescent lamp will be labelled as being dimmble and can be connected to an ordinary dimmer. For tubes, the ballast has to be specailly designed to be dimmable.
How many types of starter are there for fluorescent bulbs?
There are two main types of starters for fluorescent bulbs: preheat starters and rapid-start starters. Preheat starters are used with older-style fluorescent fixtures, while rapid-start starters are used with newer fixtures.
A string of 20 Christmas tree lights are connected in series to a 20 volt power source The bulbs each have a resistance of .5 ohm How much current is flowing through the circuit?
2 amps. If it is D.C.
