I bought some SANSI lightbulbs from LOFTEK for my recent home renovation as I needed bright, dimmable lighting and it's difficult to find lightbulbs that much brighter than the 100 watt equivalent. ; SANSI offers several options. All of the SANSI bulbs I've tried turn on within a split second and dim beautifully with no noticeable noise. I tried 150 watt equivalent light bulbs, both soft/warm white (SANSI A19 17W (150W equivalent) dimmable LED bulb, 2300lm, 3000K soft/warm white, CRI 80+, E26 medium screw base for home lighting, UL listed) and Daylight, SANSI A19 17W (equivalent to 150W) Dimmable LED Bulb, 2450lm, 5000K Daylight, CRI 80+, E26 Indoor Lighting with Medium Screw Base, UL Listed. I prefer the brighter daylight version as it's easier for me to read. Then I found out that LOFTEK offers a bulb that is equivalent to 250W. This is my favorite so far. I was worried it might be too big for a normal lamp but it fits great and puts out a very bright light when I turn the dimmer to the maximum. In the picture I've attached, the 150 watt fluorescent light is on the left and this 250 watt fluorescent light is on the right. I think these are the lamps I will continue to buy in the future when replacing the old lamps.