Lighting

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People need exposure to light because sunlight provides ultraviolet B (UBV) rays that help the body produce vitamin D. Vitamin D helps balance the calcium that the body needs in order to maintain healthy bones and teeth. The amount of sun exposure a person needs depends on the climate.

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  • How Low Should Pendant Lights Hang?

    Q: How Low Should Pendant Lights Hang?

    A: For a standard 8-foot ceiling, a pendant light typically hangs 12-20 inches below, which is 84 to 76 inches above the floor. For every additional foot of ceiling height, the pendant-light drop length increases by 3 inches, according to Better Homes and Gardens.
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  • Can LED Lights Be Dimmed?

    Q: Can LED Lights Be Dimmed?

    A: According to Lutron Electronics, not all LED lights can be dimmed. The packaging must be labeled as "dimmable" and an LED-specific dimmer switch must be used.
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  • What Is the Importance of Light in Our Life?

    Q: What Is the Importance of Light in Our Life?

    A: People need exposure to light because sunlight provides ultraviolet B (UBV) rays that help the body produce vitamin D. Vitamin D helps balance the calcium that the body needs in order to maintain healthy bones and teeth. The amount of sun exposure a person needs depends on the climate.
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  • At What Height Do You Put a Chandelier Over a Bed?

    Q: At What Height Do You Put a Chandelier Over a Bed?

    A: When hanging a chandelier over a bed, the bottom of the chandelier should be approximately 7 feet from the floor, according to SFGate. This height can be achieved by shortening the chain on the chandelier.
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  • How Can You Remove a Stuck Light Bulb?

    Q: How Can You Remove a Stuck Light Bulb?

    A: Remove a stuck light bulb using a piece of duct tape, a bar of soap or a potato. The likelihood of the bulb breaking is high so gloves and eye protection should be worn while trying to loosen a stuck bulb.
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  • What Are Some Facts About Incandescent Light Bulbs?

    Q: What Are Some Facts About Incandescent Light Bulbs?

    A: Although it is commonly believed that Thomas Alva Edison invented the incandescent light bulb, he actually just improved on light bulbs detailed in a 1875 patent he bought from two other inventors, Henry Woodward and Matthew Evans.
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  • How Do You Wire a Security Light?

    Q: How Do You Wire a Security Light?

    A: To wire a security light, turn the current off, assemble the light, and make the proper wire connections. Always use the utmost level of caution when dealing with electricity, and do not hesitate to contact a professional electrician for help.
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  • How Do You Install a Chandelier?

    Q: How Do You Install a Chandelier?

    A: To install a chandelier, insert a fan brace into the ceiling, attach the chandelier to it and connect the chandelier to the nearest wiring box. The required supplies are a chandelier, a fan brace, a ladder, insulated gloves, a flat screwdriver, twist-on wire connecting caps, a small pry bar and a wrench. This procedure usually takes about 90 minutes.
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  • Why Do Your Light Bulbs Keep Blowing?

    Q: Why Do Your Light Bulbs Keep Blowing?

    A: When light bulbs blow out repeatedly on a light fixture, the cause is either too much electricity or faulty wiring. There are solutions to each problem.
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  • How Bright Is an LED?

    Q: How Bright Is an LED?

    A: LEDs (light emitting diodes) are brighter than incandescent or halogen bulbs of the same wattage, but LED bulbs are not available in high wattages. Some of the brightest LED flood lamps use 11-12 watts and emit light comparable to a 50-watt incandescent bulb.
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  • Q: How Does an Incandescent Light Bulb Work?

    A: According to Union College, an incandescent light bulb operates by acting as the load in an electric circuit. The glass bulb contains a wire which heats up with electrical current, and the heat causes the wire to glow white-hot and emit visible light.
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  • Q: What Are Some Products Offered by Schonbek Chadeliers?

    A: Schonbek Chandeliers offers chandeliers, pendants and wall sconces, as of 2015. The company also accepts custom lighting orders to meet a particular design challenge or customer vision. Schonbek does not sell its merchandise directly on its website but instead provides a list of Schonbek showrooms under the Retailers tab at Schonbek.com.
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  • Q: What Are Some Stores That Sell Replacement Crystals for Lamps?

    A: Amazon, The Crystal Place and ChandelierSupply.com are retailers that sell replacement crystals for lamps, as of 2015. The retailers carry a variety of crystals for lamps, chandeliers and lighting fixtures.
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  • Q: Where Is the Duquesne Lighting Company?

    A: The Duquesne Lighting Company is located in Pittsburgh, Pennsylvania. As of 2015, the mailing address for general comments and any legal questions is 411 Seventh Avenue, Pittsburgh, PA, 15219.
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  • Q: How Do You Dispose of Fluorescent Tubes?

    A: Find out whether fluorescent tubes can be recycled or disposed of at a local waste collection agency, or a retail hardware store. Search.Earth911.com can also be used on the Web to find a place to recycle or dispose of materials anywhere in the United States.
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  • Q: What Are Westinghouse Solar Lights?

    A: Westinghouse solar lights are landscape lights containing a small photovoltaic cell that converts sunlight into electrical energy. While the sun is shining, the photovoltaic cell captures solar energy that is then used to power the lights.
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  • What Is "monochromatic Light"?

    Q: What Is "monochromatic Light"?

    A: Monochromatic light refers to light that is of one color. Since it only emits one color, monochromatic light has a single wavelength. Wavelengths are seen as a rainbow of colors when light is passed through a spectrum. Therefore, monochromatic light would emit just one of these colors.
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  • Q: What Are Some Good Brands of Video Lamps?

    A: Some good brands of video lamps include Lowel, Arri, Ikan and Flashpoint. These brands of video lighting garner positive reviews. Many offer both camera-mounted and free-standing video lighting systems.
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  • Q: Is It Important to Know the Lumens of a Bulb?

    A: Lumens measure how bright a light bulb is, so it is only important to know how many lumens a bulb produces if the primary lighting concern is brightness. The more lumens a bulb has, the more light it produces and a bulb with fewer lumens produces dimmer light. Lumens do not measure how much energy a bulb uses. It is still important to know how many watts a particular lighting fixture can accommodate, but lumens do not affect that criteria.
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  • Q: What Types of Energy-Efficient Bulbs Does Sylvania Make?

    A: Sylvania markets its fluorescent light bulbs as energy-efficient bulbs that come in U-bend, compact, circular and linear types, as of 2015. The electronics company believes these light bulbs save energy over time after the initial purchase.
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  • Q: How Do You Get a Stuck Light Bulb to Loosen?

    A: A common method to get a stuck light bulb to loosen without damaging it or the socket is to use duct tape to create two handles on either side of the bulb and then twist them counterclockwise. Before attempting to remove a stuck light bulb from the socket, always shut the light off first to allow the bulb to completely cool.
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