Lumens (light output)
This refers to the literal measure of the light-output of a particular light bulb, measured in the number of lumens.
Watts (Energy Used)
"Watts" is the term applied to the amount of energy required and used by a particular light bulb. It is an international system unit of power equal to one joule per second. Contrary to popular belief, the wattage of a bulb does not directly measure the brightness; the "lumens" of a light is what defines the actual light output.
Average Lifetime
This refers to an average lifetime rating based on large quantities in test groups. This testing takes into account usage of 3 hours per start for fluorescent lamps and 10 hours per start for HID lamps.
Volts
Voltage is a measure of electrical potential.
Bulb Type
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The "Bulb Type" is typically a combination of the style of bulb as well as the width of the bulb. Usually, the first couple letters will indicate the type; "G" would indicate "Globe", "PAR" would indicate "Parabolic Reflector"... The numbers indicate the diameter of the light bulb in eighths of an inch; a "G40" would be a "Globe" style that is "5 inches" in diameter.
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Base Type
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The "Base" of a light bulb is the part that either screws or snaps into a receptacle. Base Type terminology may indicate common descriptive words like "Medium" or "Candelabra", or may even contain numeric codes that signify size and variety, like "E26" or "2GX13".
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Filament Type
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The filament is the style of fine wire that is heated electrically inside of an incandescent light bulb.
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Color Temperature
Correlated Color Temperature (CCT) is a specification of the color appearance of a light bulb, relating its color to that of a reference source heated to a particular temperature, measured in degrees Kelvin (K). It generally measures the "warmth" or "coolness" of light source appearance.
CRI (Color Rendering Index)
CRI refers to the "Color Rendering Index" of a light bulb. CRI measures a light source and grades its ability to render the color of objects "correctly," as compared with a reference source with comparable color temperature. 100 is perfect rendering.
Length
This is sometimes referred to as MOL, or "Maximum Overall Length". It measures the absolute length of a light bulb, from the top of the bulb to the bottom of the base and is typically expressed in inches.
Width
Width refers to the complete diameter of the widest point of the light bulb.
Beam Angle
The beam angle refers to the width of the light beam coming from a reflector light bulb. The higher the number, the wider the beam spread.
# of Lamps
This refers to the number of Fluorescent or HID light bulbs that this particular ballast can light.
Bulb Type Used in Ballast
This refers to the style of light bulb that this particular ballast can light.
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Just what I wanted. I hate those wait 10 minutes and then you can see bulbs. This is exactly what my bathroom exhaust and heat fan and light uses. Hard to find, but they're perfect and work great. I couldn't be happier.
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Customer recommended! |
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Great product. Great website - easy to navigate, quick and efficient. great prices!
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Customer recommended! |
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These bulbs were a perfect match to the ones in our kitchen. The original Westinghouse bulbs lasted for many years. When three of six burnt out within two weeks, instead of purchasing different flood lamp I had to have 120 volt R40. There were no options to buy this bulb in my immediate area. Thanks to eLightBulbs, my kitchen is once again bright.
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Customer recommended! |
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Works fine.
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Customer recommended! |
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8/09/12 (Colleyville, TX)
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Good experience.
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Customer recommended! |
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Exactly what I wanted.
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Customer recommended! |
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I have placed orders previously and as always I am complete satisfied. I would recomend this product to all of my friends.
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Customer recommended! |
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1/27/12 (West Chester, PA)
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I am so happy to have found your site. I was unable to find the Westinghouse 100 watt bulb that I prefer using at any local vendors.
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Customer recommended! |
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Great!
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Customer recommended! |
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Bulb I wanted, could not find in store.
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Customer recommended! |
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Great service, fast shipping. The box stores don't carry these types of bulbs in 100 watts. Usually can only find 65 watt. I was glad to find these bulbs on eLightBulbs.com.
They even have 120 watt but I have 6 cans running off of one 600 watt switch, so I didn't want to overload the switch. I also put them on a dimmer and dim them 3% which is barely noticeable. The dimmer will also bring bulbs to full brightness in under a second. This will greatly extend bulb life.
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Customer recommended! |
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Great service and product.
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Customer recommended! |
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9/28/11 (Franklin Park, NJ)
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Great product, exactly what I needed. I have been looking for it but Home Depot does not carry it. Neither does Lowes. So I'm glad I found you.
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Customer recommended! |
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This light bulb provides a bright, and wides spread light perfect for work areas such as a kitchen.
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Customer recommended! |
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Products works fine.
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Customer recommended! |
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We moved into new house and discovered all light fixtures used specialty bulbs! Fortunately, eLightBulbs carries them all. First shipment came promptly, with no broken bulbs. Prices were great, too.
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Customer recommended! |
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The first bulb, used for canister lighting, lasted one day. The second bulb over-heats then goes out. After it cools, it relights. This sequence is repetitive. The remaining bulbs have not been tested yet
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Customer recommended! |
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