This article introduces HC‑B‑1747 full‑LED combined head lamp supplied by Changzhou Haochen Imp. & Exp. Co., Ltd., which is a direct‑replacement lighting part tailored for Yutong C11E new‑energy tourist coach. Integrating low‑beam, high‑beam, daytime running light and turn‑signal lamp, the 24V DC headlamp features energy‑saving LED light source with 50,000‑hour service life, projector lens for anti‑glare even illumination, IP67 dust‑proof & waterproof, anti‑vibration performance and CAN‑bus electromagnetic compatibility, adapting to harsh night driving scenarios such as mountain roads and highways. With plug‑and‑play installation without wiring modification, it perfectly matches the original vehicle streamline fascia. The product supports OEM & ODM, with available E‑MARK and other certification documents. It targets overseas bus operators, spare‑part distributors and repair workshops; the supplier also provides a full range of bus lighting spare parts.