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GE 21710 15 Watt (65W equivalent) Energy Smart Floodlight Dimmable R30 Light Bulb 3 Count
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List Price: N/A
Our Price: $38.14
Availability: Usually ships in 24 hours
Manufacturer: General Electric
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Average Customer Rating:  
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Binding: Tools & Hardware
Brand: General Electric
Color: Soft white
Feature: A smart way to save energy
Label: General Electric
Manufacturer: General Electric
Model: 21710
Publisher: General Electric
Studio: General Electric
Variation Description: Soft white
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Features
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A smart way to save energy
Application: Indoor spot/ floodlight 375 inch wide fixtures
Base: medium screw (E26); Bulb type: R30; Watts: 15
Initial Lumens: 700
Guaranteed to last 4 years based on 4 hours use per day at 120V.
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Spotlight customer reviews:
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Customer Rating:
Summary: These bulbs work great and will save you money
Comment: I used some of these bulbs in an overhead fixture that originally used incandescent bulbs. I've used dimmable fluorescent bulbs before so I know that you can't dim them quite as low as a regular bulb. They probably dim to about 20% which suits our application just fine. I've been using the bulbs daily for about 2 years and they're working just fine. I've found that if you turn them on and let wait a few minutes you are able to dim them down further than if you just turn them on and dim them right away.
I'm very happy with the bulbs and even more happy with the money I'm saving on electricity, not to mention that they don't give off a lot of heat like incandescent bulbs do. That can help in the summer when you're trying to keep the house cool and maybe even save a little on the air conditioning.
Customer Rating:
Summary: Dimmable track lighting
Comment: I recently purchased dimmable track lighting CFL bulbs. They're only about 50% dimmable but still, the money we're saving on electric bill makes up for it!
Customer Rating:
Summary: Work well, a few cons
Comment: These work well, for the most part. They are brighter then the 65W incandescent bulbs they replaced, but they take 5 mins or so to get that bright. They dim, but only about 50% or so, and in our case we can't turn the dimmer more then 70% off or they flicker. All in all, they do the job we wanted, run cooler then what they replaced, and since they stay on 24 hours a day in a business setting the warm-up period doesn't matter much to us.
Customer Rating:
Summary: Not up to current standards; unacceptable delay; needs 2-3 min warmup.
Comment: We use CFLs in non-dimmable fixtures and have done so for years. So we expect our bulbs to light instantaneously. For instance we use CFLs for step lightiing, not an application where you want to surprise people with a delay after they flip a switch.
This bulb has a delay reminiscent of the old CFLs we began buying ten years ago. Furthermore, it begins dim and requires 2-3 minutes to reach full brightness. That might have been OK then, but people have heard how great CFLs are now (and I think they ARE great), and how all the previous shortcomings have been fixed. I am concerned about what impact this bulb might have on new users. I have extensive experience with CFLs and strong faith in their utility and value as energy savers. If this were my first bulb, I might wonder if that was all hype.
If you have never used CFLs before, they ARE great, they don't have a delay (except this one), and they do equal the quality of incandescents. You should use them where you use regular non-dimmable bulbs. OTOH I would recommend trying dimmables one brand at a time to see if they are compatible with your dimmers and to catch performance issues like the ones I have had with GE's dimmable flood. I am going to try other brands of dimmables, but i would discourage others from buying this one.
Customer Rating:
Summary: Advantages of CFLs over incandescent and dimmable CFLs.
Comment: Advantages are less energy usage and less heat production over incandescent bulbs but they do cost more. I would buy this one rather than the dimmable CFLs which only dim about 20% (Sylvania 10%, Philips 20%, GE20%) and cost about 3-4x as much. Don't buy expecting them to dim like incandescent bulbs, because the way they dim is by producing harmonic distortion (changing the waveform to one where less light is produced) which can cause flickering and even without noticeable flickering possibly even headaches or eye strain in some people. So go with the nondimmable CFLs instead.
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