Review on Industrial Dimmable GU10 LED Bulbs: Delivering Equivalent Electrical Performance by Samuel Mortimer

These are exceptional light bulbs and they are 75w dimmable; Very few 75W dimmable incandescent bulbs are currently available. I replaced the bulbs with 50w Costco. I have eight 4 inch ceiling lights in a circle in my living room. The room has always looked like a cave. But when installing these lamps, we went from late evening light to daylight! Of course we added 200 watts of light output. But the fact that these are weak, I doubt we will ever run lamps at their former optimum wattage of 400 watts and leave them at 600 watts. They were shipped in two days and well packaged and I doubt they could break given the high build quality. In the first photo 75W x 8 lamps or 600W; the second photo is darkened by about 400W. My wife and I love these lamps.