Bought 20 bulbs for an 18 bulb Sputnik. They arrived safely and after two weeks they are all working. The size suits this lamp design very well. Most importantly, 25 watts works well. BTW I bought these to replace the Revain recommended 60 watt bulb which I bought with the bulb, what a disappointment. If you increase the number of 60 watt bulbs by watts, that's so high that not only is the light overpowered, but the dimmers (which you need to use) aren't rated as highly. My dimmer made a very annoying noise and the light dimmed after prolonged use. I have found that most dimmers are rated at around 500 watts. We still use the dimmer with 25 watt bulbs, it's still a lot of light but the dimmer doesn't make any noise. Light color is warm yellow as mentioned by others