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  • Utilitech 4-Pack 23-Watt (100W) Spiral Standard Base Daylight (5000K) CFL Bulbs ENERGY STAR
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Utilitech 4-Pack 23-Watt (100W) Spiral Standard Base Daylight (5000K) CFL Bulbs ENERGY STAR


Price: $29.41 ($7.35 / Bulb) & FREE Shipping on orders over $35. Details
Only 16 left in stock.
Sold by E P D and Fulfilled by Amazon. Gift-wrap available.
  • 4-Pack 100-Watt Equivalent Daylight Compact Fluorescent Light Bulb ENERGY STAR
  • Uses 23 watts for 1600 lumens of brightness (100-Watt Equivalent).
  • Bulb life is 10000 hours.
  • 5000-kelvin color temperature, Natural Daylight /Grow Light
  • Natural day light gives a cooler shade of color best used to enhance room's mood
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$29.41 ($7.35 / Bulb) & FREE Shipping on orders over $35. Details Only 16 left in stock. Sold by E P D and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Utilitech 4-Pack 23-Watt (100W) Spiral Standard Base Daylight (5000K) CFL Bulbs ENERGY STAR + Ecosmart 14-Watt Daylight Compact Flourescent (CFL) Light Bulbs 4-Pack (equivalent to standard 60 watt bulbs)
Price for both: $39.90

Buy the selected items together


Technical Details

  • Twist light bulb
  • Uses 23 watts for 1650 lumens of brightness
  • Bulb life is 8,000 hours
  • Medium base, most frequently used in general lighting applications including household lighting needs
  • Designed for indoor or enclosed use only 3500K Bright White light

Product Description

4-Pack 23-Watt (100W Equivalent) Spiral Bright White CFL Bulb ENERGY STAR Twist light bulb Uses 23 watts for 1650 lumens of brightness Bulb life is 8,000 hours Medium base, most frequently used in general lighting applications including household lighting needs Designed for indoor or enclosed use only 3500K Bright White light Bright White light can give your room a nice white crisp glow, without the coolness of blue an warmness of yellow makes room attractive an comfortable Light bulb dimensions 2"D X 4.5"L

Product Information

Technical Details
Brand Utilitech
Part Number 345544
Item Weight1 pounds
Product Dimensions10.3 x 7.4 x 3.1 inches
Item model numberL23TM4/5K
Shape Spiral
Voltage 120 volts
Fixture Features Twist light bulb, Uses 23 watts for 1650 lumens of brightness, Bulb life is 8,000 hours, Medium base, most frequently used in general lighting applications including household lighting needs, Designed for indoor or enclosed use only 3500K Bright White light
CertificationEnergy Star Qualified
Type of Bulb Compact Fluorescent Light (CFL)
Base Type E26
Luminous Flux 1650 lm
Wattage 23 watts
Incandescent equivalent 100 watts
Bulb Features Instant On
Color Temperature 5000 Kelvin
Bulb Diameter 2.25 inches
Bulb Length 4.6 inches
Lumen Maintenance Factor at the End of Life 1600
  
Additional Information
ASINB00A9V7RA6
Best Sellers Rank #76,257 in Home Improvement (See top 100)
Shipping Weight1 pounds (View shipping rates and policies)
Date First AvailableNovember 19, 2012
  
Warranty & Support

Product Warranty: For warranty information about this product, please click here
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Customer Questions & Answers

Customer Reviews

3.8 out of 5 stars

Most Helpful Customer Reviews

5 of 5 people found the following review helpful By Jeffrey A. Norris on December 28, 2013
Verified Purchase
It says right on the package, 10,000 hours of use. I bought two packages and put 4 in the bathroom and 2 on a timer on the outside of the house. I know almost exactly how many hours it was before two of the bulbs burned out and that number is 1500 hours, one burned out in the bathroom and one burned out outside. I contacted the Amazon seller and they said after 30 days I needed to contact the manufacturer, so I did. 10 days later, I have still not received any response back from the manufacturer. So don't expect the 10,000 hours they advertise. I think they advertise the 10,000 hours because after all, who keep track? Well I do and 1500 hours and two are gone already so you decide.
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7 of 8 people found the following review helpful By E. N. Videtic on March 30, 2013
Verified Purchase
I got the 4 pack of these daylight cfl bulbs, and 3 of them were broken. When I unpacked them I didn't see any broken bulbs, however upon opening the individual packages I found that 3 of them had a cracked spiral near the base, and one bulb had part of the spiral part missing. I was able to use one bulb, and it's very bright, and it lights up the room much better than any warm white, or soft white CFL bulbs I have tried. I had one daylight bulb that I bought at a Walgreen store, however those were $8 each, so this 4 pack was a very good price and I would have given it 5 stars if the bulbs did not arrive broken. I sent the broken pack back to Amazon, and hopefully will get another pack of these bulbs. I don't think they look blueish as some have said, they just look nice and white like sunlight in the room. I had the soft white CFL bulbs in my living room, and those had a yellow look which I did not care for.. These are great bulbs and they give off a lot of light. The seller needs to pack them better than they do , mine had only a thin wrap of bubble wrap and they were placed in an over size box with no protection... Other than that the bulb itself is good and its bright.
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6 of 7 people found the following review helpful By Boston Bradstreet on May 21, 2013
Verified Purchase
Finally found 5000K Daylight lamps that were well priced. These are great bulbs and they give off a lot of light. The cool color is perfect for someone who has SAD or just enjoys bright cool light. I've actually noticed an improvement with my mood since putting them in (winters in Boston are long and brutal). I'll eventually replace all the CFLs in my house with LED, but for now, these Utilitech 23-Watt 5000K bulbs are perfect and will buy again.
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2 of 2 people found the following review helpful By Ron Cole VINE VOICE on January 6, 2015
I purchased these Utilitech bulbs from a local supplier for my mom when I was at her house in the spring. I had been using GE Reveal CFL Bulbs at my own place, but could not find 100 watt equivalents in that brand (she likes a lot of light). By the time Christmas rolled around, all of the Utilitech bulbs had burned out. Literally. The plastic bases on all of them have browning near the vent/glass sections that looked almost like scorching - this happened no matter where they were located in the house. On the other hand, the single OttLite 100w replacement CFL bulb I got my mom for her crafting area (a place she spends HOURS a day working) was still functioning. This time around, I found the 26w GE Reveal bulb at the store - I'll never use Utilitech again.

Rating: 0 stars.. or it would be if Amazon allowed it. I guess I will have to give it 1 star since that is the lowest possible rating.
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2 of 2 people found the following review helpful By ppratap on October 26, 2013
Verified Purchase
I did not like the bulb. Off course it is a milky white light bulb, but the quality is not guranteed. When I received the package, the bulbs looked good. But when I took one of the bulbs, and started fitting in the lamp, all of a sudden it blasted and broke, it was lucky that I did not get hurt. I feared to use the rest of bulb, some how I took another bulb from the pack and tried fitting again, but this time it did not blast. But this is was not expected.
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1 of 1 people found the following review helpful By Paulybrooklyn VINE VOICE on October 10, 2014
Verified Purchase
Perhaps I was just unlucky, but 2 of my bulbs were defective. They would light up in a strange way--incrementally--and then after about an hour they would burn out. I tried them in different sockets and they failed the same way. Unfortunately, I was overconfident after having read all the positive reviews here and let them sit on a shelf for a couple of months before trying them out, so it was too late to return them.
Otherwise, these are nice, bright bulbs. Daylight is much bluer than most incandescent lighting--the color may seem very cold to many users. Usually our eyes adapt and we don't notice just how yellow most artificial lights are. If you take a walk just before sundown, when people are beginning to turn on their lights, you will see how yellow they appear compared to the much bluer outside daylight.
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1 of 1 people found the following review helpful By Jesse Bailey on March 31, 2013
Verified Purchase
I use these lights for a light box and the light bulbs help produce some wonderful photographs. They are very bright! I would definetly buy them again.
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1 of 1 people found the following review helpful By Michael Parseghian on March 6, 2013
Verified Purchase
Great color for what I was looking for. Small base worked well for the tight spot I needed them in.
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