This HID LED has been designed to run on universal voltage 100-347V. With only 120W it offers the same output as a 250W-400W HID lamp. compatible with ballasts. This lamp is fully omnidirectional emitting 360° of evenly diffused light. This HID retrofit solution is also suitable for use in enclosed fixtures. Its high lumen output and exceptional efficacy make it an ideal choice for various post top applications. Simply install this retrofit solution inside your existing fixture and turn ON the savings.