I bought these LED bulbs for some ceiling lights that used to have halogen bulbs. My lights are ceiling mounted so they have a lot of leeway down, but very little up. Therefore, the shape of these bulbs was important. They fit perfectly and I had no trouble putting them on. These lamps have good brightness and excellent color. I have previously tried other LED bulbs from another manufacturer and they were dimmer and greener. These Luxvista lamps are a definite improvement. One thing I noticed is that these lamps have LEDs located around most of the body's circumference. This means that some of the light from the bulb is directed upwards in my fixtures. This is not a problem for my setup, since my lights have a reflector as a base plate on the side of the ceiling. All light is reflected downwards. I can't say anything about the longevity of the bulbs as I've only had them for about 48 hours. However, so far so good.
Lamp LED Yeelight Smart LED Bulb W3 (YLDP005), E27, A60, 8 W, 6500 K
47 Review
Lamp LED Xiaomi Mi Smart LED Bulb Essential (MJDPL01YL), E27, 9 W, 6500 K
113 Review
Lamp LED Xiaomi Mi Smart LED Bulb Warm White (XMBGDP01YLK), E27, 8 W, 2700 K
26 Review
Smart bulb Yandex with Alice, base E27, 8 W, RGB color
76 Review