Assuming they live up to the advertised average bulb lifetime, these are a good deal. However, I was replacing two brands of lights, and whereas the two previous brands were close to the same size as each other, these were bigger. So big, in fact, that they do not fit in the puck lights, and barely fit in the outdoor lights. At first I thought, "Well, Mea culpa for not looking at the dimensions in the product details," but those dimensions are of the box(es) not the bulb. These bulbs all say 120V 20W JCD G8, but these a touch longer and fatter than the other brands.