How is this bulb different than another full spectrum bulb like this one: ALZO 27W Joyous Light Full Spectrum CFL Light Bulb 5500K, 1300 Lumens, 120V, Pack of 4, Daylight White Light How is this bulb different than another full spectrum bulb like this one: ALZO 27W Joyous Light Full Spectrum CFL Light Bulb 5500K, 1300... » Read More How is this bulb different than another full spectrum bulb like this one: ALZO 27W Joyous Light Full Spectrum CFL Light Bulb 5500K, 1300 Lumens, 120V, Pack of 4, Daylight White Light « Show Less
884216
Likely it is in the amount of UV/A & UV/B Ray output level. Feather brite is designed for aviary use and has a certain amount of ultraviolet light emitting from its bulb.
884217
I have never compared this bulb with others. We had a bird that was loosing feathers and they were not really comming back. This bulb helped our bird and now things are great. Light it on her cage daily for at least 8 hours. The reason I picked this bulb is that it is for birds. Some are made for a terriums
4822
2000k lower blue spectrum... if you are looking for the warm bulbs (red spectrum), I believe you have to look for 3000k (lumens I think you are looking for). They cost more than the regular ones this comes with. Just no matter what, always make sure proper wattage. Not worth risking fire.
1785853
I'm definitely not an expert, but I bought these, and I think they give off the same amount of light as a standard CFL. They're plenty bright. I think they're just called minis because they're shorter -- the longer ones don't fit with some of those ceiling covers you try to put over the bulb. The reason I bought these, though, wasn't because they were mini but because they're 2700K temperature, which gives off a much softer, warmer light than the typical harsh white CFL bulbs.
1794254
It is a 5000K bulb, no? While it is not labeled "Daylight," Daylight lamps are often ~5000K, sometimes higher, the higher the more like daylight. I myself consider it to be a "Daylight" bulb, and I use it as a GroLight for my houseplants and seedlings. They love it, and they are the ones with the final vote: they say, "Aye."
1723504
I don't see the kelvin # on this package, it may be on the back, does any one know? Light Bulbs are rated for Color Temperature, measured in kelvins. In my kitchen I prefer a `daylight' white light at about 5000 to 5200 kelvins. You'll notice the difference immediately if you mix bulbs in a multi-light fixture; one very white bulb makes the yellow ones seem REALLY yellow! Here's a webpage with an explanation and chart.http://www.lightbulbsdirect.com/page/001/CTGY/ColorTemp
1530806
Sorry, still using the original bulb. I assume you are replacing the bulb? What does the bulb say? I can't find anything in my manual that calls it anything other than a 4 watt i.e. "Replace the 4 W night lamp (Max 4W incandescent lamp)". I would think a regular night light bulb is what they mean. I don't see any reference to Type T, (tubular). Does the regular 4 w incandescent C7 bulb not fit?The service manual lists it as Part FFV3420005S if that is any help ordering it online.
2254240
Sorry for the delay. I had to find an incandescent bulb. I converted my house to CFLs years ago, but I found a 40W in the garage door opener. I'm not sure if it's the same size as a 60W. The LED bulb is about 3/8" - 1/2" longer than the 40W. Otherwise, they're the same diameter and pretty close in shape. The light from the LED bulb is very directional. If you put one in a table lamp, you'll light the ceiling more than the table. I tried one in a horizontal, single socket ceiling fixture and only lit up the one side of the room that the bulb faced. Best to have a dual-socket ceiling fixture. Sorry for the delay. I had to find an incandescent bulb. I converted my house to CFLs years ago, but I found a 40W in the garage door opener. I'm not sure if it's the same size as a 60W. The LED bulb is about 3/8" - 1/2" longer than the 40W. Otherwise, they're the same diameter and pretty close in shape. The light from the LED bulb is very directional. If you put one in a table lamp, you'll light the ceiling more than the table. I tried one in a horizontal, single socket ceiling fixture and only lit up the one side of the room that the bulb faced. Best to have a dual-socket... » Read More Sorry for the delay. I had to find an incandescent bulb. I converted my house to CFLs years ago, but I found a 40W in the garage door opener. I'm not sure if it's the same size as a 60W. The LED bulb is about 3/8" - 1/2" longer than the 40W. Otherwise, they're the same diameter and pretty close in shape. The light from the LED bulb is very directional. If you put one in a table lamp, you'll light the ceiling more than the table. I tried one in a horizontal, single socket ceiling fixture and only lit up the one side of the room that the bulb faced. Best to have a dual-socket ceiling fixture. « Show Less
2046412
The CFL bulb size is that of a standard medium base light bulb if the wattage is generally less than 150--higher and it is a bigger mogul base. The Kelvin range for these is usually over 4000 Kelvin making them a bright white.
2264491
I would believe that discrepancy is a typo. This type of light mush use a switch rectifier to convert AC to DC . It can handle 85 -265 V. I just used a photometer (the meter for photographic use) to measure the luminance (roughly means brightness) of this LED at a distance of 1 ft. It has about 4000 lux which can be converted to 4700 lumens. This is way above the nominal value of 2700 lm. I am guessing maybe 2700 lm is an average value during the life span. The LED I measure only a few months old. After 5 to 10 years it might drop to around2700 lm. Hope this helps, more or less.
76079
It's not "pure white" like 4500K, looks like "cool white" that means about 5500K. But looks good specially for some places where you want a bright light instead a non color change light. The pure white version of 5050 LED is difficult to find and is only useful if you want to see colors as a sunlight. The cool white have about 5% to 15% more blue into light spectrum.I have both and honestly, is hard to see the difference if you don't put near enough one from the other.
1112588
The pkg. says that the color temp. is 2700K, which is what regular incandescent and CFLs are labeled as. However, I have some LED floods in my office that are 3000K which is a whiter light than 2700K and these Philips are more like the 3000K lights I have. I love them!
869472
Do not have an exact answer but I have purchased two types from the same manufacturer. The first were white light and a bit startling and different from incandescent that I am used to using. I really did not like them. The second purchase was of a warm light variety. Right now they are intermixed with the white light in the fixture. I will buy the warm or reddish light ones in the future. My disappointment in these lights is that three have burned out in the first six months and one lasted less than a week. They have held up better of late. They are in a fixture fed with a dimmer and I wonder if that is the cause of the failures. I am getting better at setting the dimmer slightly off the peak setting where the lights actual want to flicker. Off course I know the dimmer will not work but it is there and sometimes gets set inappropriately. Need to replace it with a regular switch one day.
1501727
Depends what you are used to and looking for. If you don't mind the blue spectrum, this is a nice bulb. We have the same bulb in the red spectrum in our kitchen and like them. We use the blue spectrum version in some rooms. Both put out a lot of light, work well on dimmer switches and are efficient.
1644459
I saw 8W or 15W CFL's that size at a OSH hardware store here in California, but I do not remember if they are the colour correct type. The ones on the dickblick website have one part # for 2 different sizes?
303303
I have used the Daylight LED bulbs and I have found them to be brighter than a normal bulb. Is the 11W bulb brighter than the 75W build, I don't really know.
1213241
It wasn't specified, but it looks to be in the 7000 range (very white). If you need a warm light, try E27 5w 12v 3000k~3500k Warm White LED Light Bulb I bought a number of them and they're working well.
1454630
Don't know specs mine put out half the light as the halogen ones . It's more of a mood lighting , like a 15watt halogen bulb