BD headlamps are designed with durable, long-lasting LED bulbs that are not intended to be replaced. The LED bulbs are made of a solid-state construction with no filament or fragile parts, making them much more durable and less prone to burning out compared to traditional incandescent bulbs. In the unlikely event that your headlamp's LED bulb does fail, we recommend contacting our customer service team for assistance with repair or replacement options. However, it's important to note that most BD headlamps come with a limited lifetime warranty, so you may be eligible for a free replacement if the issue is covered under the warranty terms.