... 9004 hid ballast 1, stable performance 2, high brightness 3, easy to instal Specifications: Input voltage: 9-16VPower: ... and own the intellectual property. 1. Single-board structure with dual-core digital technology, refined circuit, perfectly controlled, intelligent ignition ... voltage,short circuit,low-temperature,high-automatic protection function.3. Heat-resistant: high efficacy, low temperature rise ...