A21 LED Light Bulb 20W (150 Watt Equivalent), 2300 Lumens 4000K Cool White (Clean Neutral White), E26 Medium Screw Base, Not-Dimmable, UL Listed, XMprimo - 3 Pack

I only installed these a day ago in my workshop to replace some lower wattage incandescent bulbs. They provide an exceptional amount of light. Delivery was on time. Perhaps a little pricey but assuming they last as long as advertised they should be well worth the investment. .

does anyone know how to contact seller on this? I've got multiple of these and am very happy with the light quality it is just that one has failed in usage after roughly 1 year at 8 hours/day and i would like a replacement.

I visited several stores, looking for something this bright. Finally I asked myself why I didn't just go straight to Amazon to order! Bright as expected. Unfortunately it'll take many hours of usage before I'll know if they last a long time it not.

Put them in a big overhead Tiffany chandelier in a tall great room, now it looks like we have daylight coming in all day!!

I bought and returned these for several reasons you can read below. I forgot to snap photos of the bulbs before returning them, to show in images what I'm talking about below, but I think even a written review can suffice. First of all, I do not believe the claim that they are 2300 lumens, because when I compared them to other LED bulbs that I have that produce 1600 lumens @ 4000k, they were only a LITTLE brighter, while being at least $5-6 more expensive PER BULB, and consuming a full 5 watts more in power. Secondly, and that is the main reason why I returned them, they are much heavier and larger in size, therefore the A21 ("A" means shape, and the number that follows is the diameter of the bulb in 8ths of an inch) in the description is also wrong - it's more likely A23 rather than A21. Just by looking at one of the product images the manufacturer (who is also the seller) provides where they show the width/diameter of the bulb to be 2.81", you can see it's not A21, because 21 * .125 (.125 is an 8th of an inch) = 2.625", while A23 is 23 * .125 = 2.875", slightly bigger but much closely approximating the size of these Primo bulbs. It was my fault for not paying attention to the measurement details in that image, but it was the manufacturer/seller's fault for misleading buyers by expressly and plainly stating that they are A21 in all their descriptions (including the title). A21 is A21, if I see a bulb is stated as being A21 by the seller/manufacturer, I shouldn't have a reason to doubt it and wonder if the seller/manufacturer is lying or not, which in this case, they are. I'm not nitpicking - some light fixtures, like the one I bought these bulbs for, are constrained in space and if the maximum size they can accept is A21, you would waste your time buying and returning these, like I did. The seller/manufacturer is probably wagering on the fact that most people would look the other way if the bulb is slightly bigger but still fit, but this creates unnecessary hassle and waste of time for those customers who, like me, are trying to stay within their fixture's light bulb size limit. Based on the above 2 factors (luminosity and size), I know the manufacturer is engaging in false advertising, whether intentionally or not. I don't believe that as the manufacturer they didn't know their product's accurate specifications or couldn't take the time to make accurate measurements of it. Therefore, I think they've done it intentionally. If you still want to buy these, I suggest that you also buy less expensive, less watt-consuming alternatives that produce a similar 1500-1600 lumens @ 4000k to compare, and see for yourself. Amongst 4000k alternatives that put out at least 1600 lumens, I definitely recommend buying those which I used as the basis for comparison: https://www.amazon.com/gp/product/B0737Y4WQT/ I also submitted the same review on the 3000k version of these Primo bulbs (https://www.amazon.com/gp/product/B0749PTDDV) - which I purchased and returned at the same time as these due to the same exact issues - with the exception that over there I gave a recommendation for a 3000k alternative (https://www.amazon.com/gp/product/B01MFGH6EQ/), which this time was the basis for comparing against the 3000k Primos. Thanks for reading! If this review can urge the seller/manufacturer to correctly state their bulbs' specifications, I think it would not only create a better experience for customers, but also for the seller, leading to less returns/restocking, less refunds and less critical reviews like these, all 3 of which were the experience of the seller in this case.

Very bright, they are a little bigger than regular bulbs but the color and brightness is excellent. We’ll see about life expectancy, but so far I’m really happy with them. Just don’t forget you’ll need a fixture with plenty of room for these bulbs.

These are by far the best light bulbs I've ever had. I will be ordering more. Bright but not obnoxious. You can truly see colors and match up clothing, paint and decor. Made my room cheerful.

I have had several of these XPrimo bulbs that were defective. The most recent one stopped lighting but the base overheated and burned me when I removed it.