GU10 bulb Base

https://www.homefirst.com.sg/product-page/philips-led-gu10-5-0w-3-steps-soft-white

GU10 Base is a type of lamp fitting commonly found in Spotlight and Track Light. Sometimes referred to as two-pin, bi-pin cap or bi-pin socket.

 In Singapore, usually, we called it GU10. The "10" in the name is referred to the distance between pin center to center.