These are a classic architectural dimmable bulb that's been around for some time now

up or down

Long-life heating elements with self-cleaning system

The wall and ceiling fittings have a built in E27 lamp holders which is easily accessible by screwing off the glass case

blue globe reflector lamp FINISH:BLUE GLOBE REFLECTOR LAMP These are a classic architecturalCircular shape with central opal globe. It can be chosen in five finishes. It can be installed on the wall or the ceiling, and in a multitude of indoor spaces, as well as in the bathroom and outdoor spaces thanks to its IP44. This black wall lamp projects a uniform warm light and it is made of steel with a glass diffuser. Use on the ceiling or walls, recommended in pairs or multiples for maximum impact. Base material Steel Lampholder COB LED Power 4W