Medium Base HID Porcelain Socket 4KV Pulse Rated – 9" Leads Built for demanding applications, this commercial-grade porcelain socket delivers exceptional heat resistance and durability. The 4KV pulse rating handles high-intensity discharge lamps with reliable performance, while pre-attached 9" leads simplify installation. Engineered from industrial-quality materials, it resists thermal stress and extends service life in professional lighting setups. Ideal for HID fixtures requiring robust electrical components.