Cheap 20 Watt - 90 W Equal - Full Spectrum 5000K - CFL Light Bulb - R30

Customer Ratings:

The description of this bulb branded it with the name "Energy Miser". The item that was actually shipped was the LongStar FE-RSF-20W/50K, listed here:

http://www.amazon.com/LongStar-00381-FE-RSF-20W-Compact-Fluorescent/dp/B003PDAR0W/ref=pd_cp_hi_0

The bulb itself has a lightweight but sturdy outer shell surrounding a coiled CFL element. The coil spirals outward in a broad cone, giving it even coverage with no hot spots. This 20-watt R30 bulb compares favorably with the Maxlite 23-watt R40, which is considerably larger and more fragile:

http://www.amazon.com/Maxlite-70282-SKR423FLDL-Compact-Fluorescent/dp/B003XKCOAS/ref=sr_1_1?s=hi&ie=UTF8&qid=1352245266&sr=1-1&keywords=maxlite+23+watt+cfl+r40+flood+day+lite+skr423fldl

Both bulbs emit a well-balanced 5000K cool white light. The Maxlite is rated at 1300 lumens and is noticeably brighter than the 1100-lumen LongStar.

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Good light output but it starts off very dim and takes a several minutes to warm up. Probably not a good choice for situations where the light will be turned on and off frequently or where full light output is needed immediately.