I've run several of these bulbs for several weeks; they have good points and bad points. Using a Kill-A-Watt EZ meter to measure, they use between 3.2 and 3.4 watts. They stay relatively cool to the touch. A Black and Decker T100 Infared thermometer indicated a average of temperature of 86-89 F after being on for approximately 1 hour. That's about half the temperature I measured with both incandescent and CFLs (inclosed in cover that makes them look like an incandescent bulb). All these measurements taken with bulbs in a horozontal position. That's good news, both for your lighting and cooling costs. I don't have an accurate way to measure the color temperature of these bulbs, but they are different from the incandescent bulbs I grew up with in the 1950s-1970s. I've tried comparing them with incandescent bulbs on hand and they give different results depending on whether they are mounted in fabric or glass shades. The LED's need to be shaded from direct eye contact. You can probably find a shade that works that makes the color irrelevant. I recall these bulbs were "dimable" either in the description or as a response to a question. I cannot confirm that information. They obviously don't work as a three way bulb. I tried using them in a touch light that is able to make a standard incandescent bulb work as a three way bulb. First touch generates output that is near the maximum that flickers similar to an old fashion florescent light bulb when first turned on. Second touch seems to turn on the bulb to full capacity. The third touch seems to turn the bulb off, but with a ring of LED's around the top, probably disapating residual energy. I also tested these bulbs in exterior motion detector porch lights that turn on as a night light, then brighten when motion is detected. These bulbs came on as dusk approached, but there was no difference in output when tested with motion. I also noticed that each bulb had a layer of (apparent) condensation on the inside of the glass bulb after being turned on for approximately 15 minutes. Either this is slowly going away or I've gotten used to it.
- How did the color on site compare with the actual product? N/A
- Please tell us about the quality of the product. Solidly built, energy efficient.
- How accurate was the on site description of the product? Fair
Best price I have found on this product. I have so far used 20 of the 30 that I ordered, one bulb was detatched from its screw in base but other than that I am satisfied.
- How did the color on site compare with the actual product? same
- Please tell us about the quality of the product. bright and I never expect to need to replace another bulb
- How accurate was the on site description of the product? accurate