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How much electricity does a car light use per hour?

The amount of electricity a car's light uses per hour depends on the type of light and its wattage. Here are the approximate electricity consumption of some common car lights per hour:

1. Headlights: Halogen headlights typically consume around 55 watts, while LED headlights consume around 15-25 watts. Based on these wattages, the electricity consumption per hour is:

- Halogen headlights: 55 watts × 1 hour = 55 watt-hours (Wh)

- LED headlights: 20 watts × 1 hour = 20 Wh

2. Tail Lights: Tail lights generally use incandescent bulbs with a power consumption of around 5-10 watts. So, their electricity consumption per hour is:

- Tail lights: 8 watts × 1 hour = 8 Wh

3. Brake Lights: Brake lights also typically use incandescent bulbs with a power consumption similar to tail lights, around 5-10 watts. Their electricity consumption per hour is:

- Brake lights: 8 watts × 1 hour = 8 Wh

4. Interior Lights (Dome Lights, Map Lights): Interior lights usually consume around 5-10 watts. Here's their electricity consumption per hour:

- Interior lights: 7 watts × 1 hour = 7 Wh

Please note that these are approximate values and the actual electricity consumption may vary slightly based on factors such as the specific light design, manufacturing variations, and the car's electrical system. Additionally, the electricity consumption can be affected by factors like whether the lights are on full brightness, if they are dimmable, and if they use energy-saving technologies like automatic shutoff.