GMC Yukon Headlights
Outfit your GMC Yukon with bright headlights for safe navigation during bad weather or poor visibility. Peruse a wide assortment of bulb sizes, types of lighting, lumens, and color temperatures. These five questions and answers provide information to help you make your vehicle headlight selection.
Which type of GMC headlight gives off the most light?There is no single GMC headlight that emits the most light, although xenon bulbs tend to be markedly brighter. Lumens, the measure of light emitted per second, indicate how bright a particular headlight is. Most headlights emit enormous amounts of lumens. Measurements in the tens of thousands or better are not uncommon. As a result, feel free to purchase whichever type of light strikes your fancy, providing the bulb size is compatible with your headlight assembly.
What are the Yukon bulb sizes to choose from?Bulb sizes are standard across the industry, but the specific size for your Yukon depends on its year. This info is located in your owners manual. Depending on your vehicles year, your headlight assembly bulb size may be:
- H3, H4, H6, H7, H9, H10, H11, or H13
- D1R, D1S, or D2S
- 880 or 881
- HB1, HB3, HB4, or HB5
Dual-beam headlight assemblies occur much more frequently in later models. This type of headlight assembly has housing for one bulb. The bulb has two filaments, letting the bulb shine a low beam and a high beam as needed. The opposite, a single-beam assembly, contains housing for two bulbs, and one bulb is for the low beam setting while the other is for high beam. There are conversion kits to help you switch assemblies from single- to dual-beam or vice versa, depending on your preferences.
Which lighting type is compatible with the Denali headlight?You may upgrade your headlight assembly to accommodate any lighting type you prefer. There are no hard and fast rules, only differences in how each light bulb produces light. Halogen, an incandescent type of lighting, is fairly standard. Halogen bulbs contain a halogen gas surrounding a tungsten filament. The filament glows and melts as electricity passes through it. The halogen gas continuously redeposits tungsten back onto the filament, creating bright light that lasts a long time. Other available, compatible options include:
- Xenon/HID: Xenon gas bulbs create an electrical spark that jumps between two tungsten electrodes. High-intensity discharge (HID) works like xenon, except the electrodes are closer together and the internal gas may be xenon or mercury vapors.
- CCFL: Cold-cathode fluorescent light bulbs contain interior phosphor coatings that glow after the ionization of a low-pressure mercury vapor inside the bulb.
- LED: Light-emitting diodes produce light when electrons and electron holes recombine after electricity courses through a two-lead semiconductor.
Light that appears crystal-white to bluish has a color temperature of at least 6000K. Color temperature, measured in thermodynamic units called "Kelvin," indicates the dominant hue and undertones of a given light source. Common color temperatures range from 3000K to 12000K, with 4500K to 9000K being average for headlights. The higher the color temperature, the more crystalline and bluish the light appears. Headlights with higher color temperatures are commonly used as high beams.