Review on 🌞 Optimized Daylight Storage Basement Yard by Paula Mellgren

I don't know how they measured 4000 lumens with these bulbs but they are half as weak as my 2640 lumen LED bulb. I really needed a strong light source for my electronics passion and they don't even give half the advertised brightness. I measured the light emitted with a lux meter at 8 inches and compared it to my 2640 lumen LED bulb: this product shows 7210 lux while my other LEDs show 11430 lux! Another disappointment is that they don't fit my table lamp at all, it's still a minor thing. This is a return.