Economical: pack of 10 holders. Recessed round spotlight with fixed head BBC RT2012 This spotlight holder allows you to recess your GU10 spotlights while maintaining the BBC standard thanks to the waterproof seal and the automatic socket. The bulb is therefore positioned inside the spotlight while maintaining the waterproofing and thermal insulation. A neat brushed aluminum design. This spotlight is made of aluminum with a brushed finish. The support is round with an external diameter of 86mm. To facilitate the installation, this spotlight support is delivered with the springs, an automatic socket of type GU10 as well as a terminal block of electric connection.