The water resistance of solar street lights is usually very good, mainly due to the various waterproof measures taken into account in their design and manufacturing process. The following is a detailed analysis of the water resistance of solar street lights:

1. Protection level:

- The common waterproof grades of solar street lights are IP65, IP66, IP67 and IP68. These grades indicate the dust and water resistance of the street light.

- In particular, the IP67 grade solar street light means that it can completely prevent the intrusion of foreign objects and dust, and can withstand a certain pressure of water injection without damage. This grade of street light can withstand immersion in water for a short time (generally about 30 minutes), which is very suitable for use in harsh outdoor environments, such as rainy, humid areas.

2. Sealing performance:

- The solar street lamp has good sealing performance, and its shell design can effectively prevent moisture and dust from entering the interior of the lamp, ensuring the normal operation of the lamp and extending the service life.

3. Waterproof design and material:

In addition to meeting the standards of high protection levels, solar street lights may also use special waterproof designs and materials, such as waterproof junction boxes, waterproof silicone, etc., to enhance their waterproof performance.

- The base design of the street lamp is also usually inclined and high, so that water can flow out of the lamp body to avoid water accumulation.

4. Component waterproof treatment:

- The various components of solar street lights, such as lamp heads, controllers and batteries, are also specially waterproof. For example, controllers are often placed inside street lights to protect them from wind and sun, while batteries may be buried underground to protect them from flooding.

In summary, the water resistance of solar street lights is achieved through a variety of measures, including high protection level design, excellent sealing performance, special waterproof materials and waterproof treatment of components. Together, these measures ensure the stable operation and long life of solar street lights under various adverse weather conditions.