I bought a 100 watt 5000K lightbulb. I'm happy with my purchase and I think the price was reasonable. The lamp emits bright white light. There is no yellow haze and if there is blue then I don't notice it. The bulbous portion of the lamp is about the same size as a standard incandescent lamp and about 0.5 inch longer. I like that the bulb is suitable for closed luminaires. The lamp gets hot when it is on. I've been using incandescent bulbs for a very short time. I can't speak to her true longevity at this point. I've had many supposedly long-life LED light bulbs burn out within a year of purchase. That's why I have to buy more :(.