I have the reflectors now some time in use. They correspond well in size the old reflector lamps and therefore fit well into our "old" 2-lamp light bar. They also work flawlessly and go without delay to. Unfortunately, I like the light color is not so good. I feel that a slight green tinge is present and the light color is not as warm white, as I would like, therefore only 3 stars. For "connecting room" they might (depending on claim) but its ok in any case. Unrestricted I can recommend from the same manufacturer, the reflector lamp with 7.5 watt and E27 thread (great, bright light with a neutral light color).