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The LED Authority

TCP Dimmable 18W 5000K A21 LED Bulb

SKU: LED18A21DOD50K | Ordering Code: LED18A21DOD50K  | UPC: 762148269960

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  • Energy efficient replacement for a conventional 100 watt bulb
  • Estimated life of 22.8 years based on 3 hours use per day
  • No lead or mercury means easy and environmentally safe disposal
Description

Lighting Facts Per Bulb

Brightness 1675 lumens
Estimated Yearly Energy Cost $2.17
Based on 3 hrs/day, 11¢/kWh
Cost depends on rates and use
Life
Based on 3 hrs/day22.8 years
Light Appearance
WarmCool
5000 K
Energy Used18 watts

TCP dimmable 18 watt A21 LED bulb generates as much light as many 100 watt incandescent bulbs. 

  • No lead or mercury means easy and environmentally safe disposal
  • Saves 82 watts in electricity compared to a 100 watt incandescent
  • Very long life - Rated to still put out 70% as much light after 25,000 hours of operation as it does when brand new

Not recommended for use in fully enclosed fixtures because heat buildup will shorten life. Do not “hot swap” this bulb. Turn off fixture before replacing existing bulb.

Full Specs

Brand

TCP

Product Line

Elite Series

Energy Used

A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
 
Energy Used
18 Watts

Incandescent/Halogen Equivalent

The wattage value of an incandescent or halogen lamp of similar brightness.
 
Incandescent/Halogen Equivalent
100 Watts

Volts

A measure of "electrical pressure" between two points. The voltage specification of an incandescent lamp is the electrical "pressure" required to drive it at its designed point. The "voltage" of a ballast (e.g. 120 V) refers to the line voltage coming from the power source and is connected to the ballast.
 
Volts
120

Base

The end (or ends) of the lamp that fits into the socket.
 
Base
Medium (E26)

Bulb Shape

The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. For example, a common household bulb is the A-19. The bulb is "A" shape and the diameter would be nineteen 8ths of an inch, or 2 3/8".
 
Bulb Shape
A-21

Bulb Color

The color of the light produced by a bulb
 
Bulb Color
Bright White

CRI

Color Rendering Index is an international system used to rate a lamp's ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more accurately colors generally appear. CRI differences among lamps are not usually visible to the eye unless the difference is more than 3-5 points.
 
CRI
82

Color Temperature (Kelvin)

An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four digit number followed by (k), such as 2700k. Higher temperatures indicate whiter, "cooler" colors, while lower temperatures indicate yellower, "warmer" colors. Some common Kelvin temperature benchmarks are 2700k (warm white), 3500k (neutral white), 4100k (cool white), 5000k (bright white), and 6500k (daylight).
 
Color Temperature (Kelvin)
5000

Brightness (Lumens)

A rating of the initial light output of a bulb, rated after 100 hrs of operation. Lumens are a measure of how much light falls on one square foot of area, one foot away from the light source.
 
Brightness (Lumens)
1675

Bulb Finish

The surface finish of a bulb, which may affect the quality of the light emitted.
 
Bulb Finish
Frosted

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
 
Bulb Technology
LED

Average Rated Life (hr)

A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.
 
Average Rated Life (hr)
25000

Operating Temperature (°F)

The ambient temperature in which the product can safely operate.
 
Operating Temperature (°F)
-4 to 104

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
 
Length (in)
4.9

Diameter (in)

Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.
 
Diameter (in)
2.6

Damp Location

Suitable for an exterior or interior location that is subject to condensation of moisture in, on or adjacent to electrical equipment
 
Damp Location
Yes

ENERGY STAR Certified

ENERGY STAR is a program created jointly by the U.S, Environmental Protection Agency and the U.S. Department of Energy to help people save money and protect the environment by using energy-efficient electronics and appliances. ENERGY STAR-certified devices use less energy without compromising functionality.
 
ENERGY STAR Certified
Yes

Dimmable

Indicates whether a bulb can be dimmed in conjunction with a suitable dimmer control.
 
Dimmable
Yes
Customers Also Viewed
Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
TCP Dimmable 18W 5000K A21 LED Bulb
 
2.8

(based on 4 reviews)

50%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Primary use:
    • Personal (3)

Reviewed by 4 customers

Displaying reviews 1-4

Back to top

 
1.0

None of these worked beyond the first dimming. Terrible!

By Finco Design

From Hollywood Hills, CA

Verified Buyer

Pros

    Cons

    • Burns Out Quickly
    • They all stopped going bright after dimming.

    Best Uses

      Comments about TCP Dimmable 18W 5000K A21 LED Bulb:

      It's probably not Bulbs.com (s) fault, but these came from a bad batch or something from the manufacturer. None of them would go bright again after burning for ten minutes or after the first dimming. I needed to get paid for the project and went out and purchased replacements and threw all of them away. I was too late installing them to return them.

      • Primary use:
      • Business
       
      4.0

      good bulb, with caveats

      By jeremy

      From Ketchum, ID

      Verified Buyer

      Pros

      • Long Life
      • Reduces Energy Costs
      • Runs Cool

      Cons

      • color too cool, needs C dimmer-L

      Best Uses

      • Outdoors

      Comments about TCP Dimmable 18W 5000K A21 LED Bulb:

      Choose warm white for residential use.

      • Primary use:
      • Personal
       
      5.0

      Great bulbs

      By Rob

      From Mobile, AL

      About Me Quality Oriented

      Verified Buyer

      Pros

      • Bright

      Cons

        Best Uses

        • Kitchen

        Comments about TCP Dimmable 18W 5000K A21 LED Bulb:

        Light above kitchen table.

        • Primary use:
        • Personal

        (0 of 1 customers found this review helpful)

         
        1.0

        bulbs make table and floor lamps TOP HEAVY

        By safety

        From Chagrin Falls, OH

        About Me Quality Oriented

        Verified Buyer

        Pros

        • Runs Cool

        Cons

        • Very Heavy

        Best Uses

        • Structural Fixtures

        Comments about TCP Dimmable 18W 5000K A21 LED Bulb:

        Risky to use in table lamps because these very heavy bulbs make the lamps top heavy.

        • Primary use:
        • Personal

        Displaying reviews 1-4

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        Q & A

        Do you have questions about this product?

        Get answers from real customers and in-house experts with AnswerBox.

        1 Question | 1 Answer
        Displaying question 1
        • Q:

          Is this bulb rated for enclosed fixtures
          Asked on 2/21/2015 by mohopp from Frederick, MD

          1 answer

          • CUSTOMER CARE

            A:

            No, this LED is not rated for use in enclosed fixtures.

            Answered on 2/23/2015 by Anonymous
        Displaying question 1

        Do you have a question about this product?