The 2.5" Bi-xenon projector lens is suitable for bulb diameter of H1, H4 and H7 to make your bulb brightness uniform, secure safety when driving at dark. Features: 2.5" clear lens. Elegant appearance. Inner bowl is brand new no damage. Also suitable for bulb diameter of 10.7mm H4 and H7 bulb (or the size of the bulb is same with H1 xenon lamp that can also be installed). Fits for right hand drive. Specifications: Material: Clear Glasses Lens Color: Chrome Bulb Type: H1(HID xenon lamp) Package Weight: 400g / 14.1ounces Package Size: 150 * 110 * 110mm / 5.91 * 4.33 * 4.33in Note: No instruction in the box, professional installation is strongly recommended. This item don’t include any bulbs. The wires sticking out of the projector are for high/low beam,and high/low beam was controled by your car’s switch. Package List: 1 * Mini Bi-xenon Projector Lens (Low/High Beams) 1 * Shrouds 1 * Sets of Installation Accessories