Source Socket Base GY9.5 Holder For 230V MSD 150/ 250/300W 500/700/1000W Lamp Foot Universal Studio TV Light Bulb GX9.5 Lamp Base Type on m.alibaba.com
GX9.5 GY9.5 bulb holder anti-high temperature Lamp base be used for 150W 200W 250W 575W 1000W HMI MSD MSR HTI CSR Halogen lamp - AliExpress