1.5x brightness D3S 6K bright white bulbs upgrade part for 2017-2021 Jeep Compass Bi-Xenon HID projector headlights (replaces factory old lights) 2. Easy installation in about 10 minutes without modification; direct replacement for OEM D3S/C1 Xenon HID bulbs; compatible with 2014-2021 Jeep Grand Cherokee HID headlights (high/low dual beam Bi-Xenon) 3. Long-lasting D3S-C1 HID kit built with laser-cut anti-UV quartz glass, stainless steel bracket, and ceramic insulating tube; rated to last over 3000 hours 4. 6000K cool daylight white; significantly clearer than stock 4300K yellow light; uses 43VAC D3S PK32D-5 5. Two bulbs per set; well packed; upgrade for 2014-2018 Jeep Cherokee Bi-Xenon HID headlights to refresh an aging system 6. Instant on in about 1 second; fast warm-up to full brightness for quick, reliable illumination Use scenarios - Replacing aging headlamps on 2014-2021 Jeep Cherokee, Grand Cherokee, and Compass models to restore brightness and color. - Upgrading factory HID performance for safer night driving on vehicles with Bi-Xenon high/low dual-beam headlights.