What they are: DLAA fog lamps are aftermarket automotive fog lights designed to enhance visibility in adverse weather conditions. They are often used as a supplement to standard headlights, providing a broader and lower beam pattern. Key features: Improved Visibility: Fog lamps help drivers see the road better in fog, rain, snow, and other low-visibility situations by cutting through the obscurants. Different Types: DLAA offers fog lamps with various light sources, including halogen and LED options. Vehicle Specific: Some DLAA fog lamps are designed to fit specific vehicle models, ensuring a proper fit and integration with the vehicle's existing lighting system, according to product listings Durability: DLAA fog lamps are generally designed to be durable and weather-resistant, with some featuring waterproof construction. When to use: Fog lights should be used when visibility is significantly reduced due to fog, heavy rain, snow, or other similar conditions. They are particularly useful when visibility is below 100 meters (about the length of a football field), according to the RAC. It's important to note that fog lights can create glare in heavy rain or snow if the road surface is wet. In such cases, low-beam headlights may be a better choice, according to Hicks Family Subaru.