Review on ⚡️ iSmartLED 4 Switchable LED Lighting Levels – Dimmable Daylight White, A19 Medium Base Bulb, 60W Equivalent, E26/E27, 820lm, 6000K by Cristina Gonzalez

I love these lamps! Not sure what other reviewers are saying about a slight difference in light output, which is definitely there. Of course, the difference between the two middle tiers is less than between the highest and lowest, but the difference is noticeable. If you only had one lightbulb it might not look like this, but I replaced my ceiling lights with them and if you have multiple lightbulbs in the same room the difference will be significant. I replaced all my ceiling lights with these and while it wasn't cheap I liked the end result. I have struggled with other LED bulbs and LED dimmers and they have never reached their full potential. They do exactly what they say.