Full Spectrum Light Bulb - ALZO 27W Compact Fluorescent - Case of 4 - Daylight Balanced 5500K - Pure White Light

I am an engineer who has been completely disgusted with the home lighting situation. There are no standards and many misstatements and counterdictions at the stores. I own a Minolta flash meter which accurately measures a lights color temperature. I've tried the bulb technology at Walmart, Sams Club Home Depot and Lowes. The most glaring examples:
1) yellow light is called soft white (2700)
2) very blue washed-out color light is called daylight (6000-6500)
3) Low lumen (400-600 lumens) LED lights go for as much as $90!
4) Some bulbs are advertised as white but the chart on the back shows its yellow. Go Figure!

Here are the bulbs to avoid: all (harsh washed-out blue) daylight, and (yellow) soft white. The GE Reveal offers somewhat better clarity, but is overpriced and quite yellow.

Full spectrum (5000-5500) bulbs are a step-up but stores offer a very limited selection. The Home Depot full 100w spectrum's beats the Lowe's Ott-Lite...Read more

These things give off a lot of bright white light with a slightly bluish tint. The chromatic variance off of true white is subtle however most people do not realize how used to the strong yellow tones of the average incandescent or CFL bulb. While science has a lot to say about the positive benefits of using a full spectrum light bulb, choosing this particular bulb requires a keen awareness of your use.

These lights are sturdy, are a little bit heavier than your average CFL, and are about a coil and a half too long for most residential lighting fixtures which were sized for the former incandescent bulbs.

ALZO is a great choice, if you need a smaller one, look for one with a slightly smaller watt rating, and also count the coils. This bulb would be an excellent choice for larger rooms and lights where more light is necessary - and where the mount supports its longer length.

I'm a painter - of canvases, not houses. I need an indoor light source that's as much like natural daylight as possible, so my color choices will be accurate and consistent, and not "surprising" when viewed somewhere other than my studio.

Before ordering the ALZO 4-pack of 27-watt bulbs I called the ALZO company, which is actually a manufacturer of photography-related products. I spoke with Joseph (or Yosef?) there, who is a professional photographer with decades of experience. He answered my questions with real expertise and I felt entirely confident in ordering the ALZO bulbs from Amazon.

My Amazon order arrived with the usual Amazon efficiency. The bulbs are individually boxed, with all four boxes packed inside an outer box. They are LARGER than you might expect, but my application is utilitarian, so that's not a problem. See the dimensioned illustration on the Amazon product page.

The light is BRIGHT(!) and very WHITE(!) and for me,...Read more