Review on Cotanic Daylight Standard Non-Dimmable Equivalent by Rosalio Zavala

I ordered 6 A15 bulbs for 5000K and 4000K. I measured the power consumption between 5.2 and 5.3 watts. Significantly less than the nominal 6 watts. I haven't measured lumen output or illuminance but these bulbs are very bright and compared to many other bulbs I've used I can easily believe they match (maybe exceed) the 600lm rating. Both the 5000K and 4000K emit white light similar to daylight, with the 5000K being slightly whiter with a slight bluish cast as expected (not as bright as typical fluorescents, but close) and the 4000K being slightly more yellow (noticeably less pronounced than that of a traditional fluorescent) . In my opinion, both are very pleasant, usable light colors. Reasonably priced ($1.66-$2.16 per bulb including tax), lots of light, low power consumption and solid construction. What's not to like? I am very happy with this purchase.