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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4/30/13 (Indian Land, SC)
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Works great! Great price!
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Customer recommended! |
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5/21/12 (Beaver Falls, PA)
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Excellent service! Shipped fast. I looked all over for this lightbulb and eLightBulbs had it and at a great price. I would definitely buy from them again.
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Customer recommended! |
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I searched every store for a 25 watt lightbulb for my curio cabinet. It was great to finally find one at eLightBulbs. This works great!
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Customer recommended! |
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Hard to find other places - easy to order here. Used for an entertainment center.
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Customer recommended! |
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Exactly the bulbs we needed for our entertainment center. We could not find them in any retail stores and am so happy we found them here!
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Customer recommended! |
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11/27/11 (Crossville, TN)
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Thank you so much! I have been looking for this product for several weeks. This is the only bulb that fits my wall unit,can't do without it. Thanks again.
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Customer recommended! |
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8/26/11 (Merritt Island, FL)
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This bulb was impossible to find in the box stores or ACE. Wanted some spares for our entertainment center, found them on eLightBulbs, problem solved.
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Customer recommended! |
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I have been ordering lightbulbs from another vendor for 3 years. When their prices went up too much, I found this seller, not only were their prices lower their customer service was awesome.
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Customer recommended! |
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You had the odd light bulb that I could not find in any store in my community. The only store who offered to order it said it would take 3 - 4 months. Although the price with shipping was a bit high, I had the bulb in a matter of days, not months.
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Customer recommended! |
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Tend to burn out a little quick but that certainly seems to be the norm for these kind of bulbs. That being said the price is excellent and it was exactly as shown.
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Customer recommended! |
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