Mountain cycling without using lights at night is very dangerous and poses a risk not only to yourself, but also to other riders or pedestrians. Here are some important suggestions to ensure your safety： ### 1. **Do not rely entirely on moonlight or natural light** -The brightness of moonlight is not enough to provide sufficient field of view, especially in places with dense trees or complex terrain. -Natural light is very limited at night and cannot help you identify obstacles or hazards in time. ### 2. **Use reflective equipment** -Wear a reflective vest, reflective armband or reflective sticker to increase your visibility in low-light environments. -Install reflective film or reflective tape on the bicycle to help others identify your location. ### 3. **Choose a familiar section** -Ride on familiar roads to reduce accidents caused by unfamiliar terrain. - Avoid complex or highly technical sections of the road to reduce the risk of falling or injury. ### 4. **Reduce speed** -In the dark, your reaction time will be greatly shortened, so you need to ride at a lower speed to have more time to deal with emergencies. ### 5. **Riding together** -Riding with friends or a team, you can take care of each other and help in an emergency. ### 6. **Consider using night vision equipment** -If you insist on not using lights, you can consider using night vision goggles or other night vision equipment, but these devices are usually expensive and have limited effects. ### 7. **Bring emergency equipment** -Bring your mobile phone, first aid kit, and spare light sources (such as flashlights or headlights) in case you need it in a rainy day. ### 8. **Assess weather and road conditions** - Avoid riding in rainy, foggy or other bad weather conditions, as these conditions will further reduce visibility. ### 9. **Comply with local regulations** -Many areas require the use of lights when riding at night to ensure that you comply with local laws and regulations. ### 10. **Reconsider your choice** -Most importantly, reconsider whether it is really necessary to ride at night without using lights. Using lights can not only protect you, but also protect others. Safety always comes first. If you are not sure if you can ride safely without lights, it is recommended that you postpone your riding plan or choose to do it during the day.