IP65 and IP66 are technical specifications that come up a lot when buying solar street lights. A lot of people know the terms but don’t know what they mean. If you ignore these ratings, water or dust can easily get in, causing short circuits and damage to the fixture. Today, TIANXIANG, a professional solar street light supplier, will talk about why IP65 and IP66 solar street lights are important.
Ingress Protection, or IP protection rating, is a standard for protecting enclosures that is recognized around the world. It has two digits that show the level of protection against dust and water. The higher the number, the better the protection.
The first number tells you how well the device protects against dust, with 0 being the best and 6 being the worst. Levels 5 and 6 are the most common for solar street lights:
Level 5: Keeps solid foreign objects from getting in completely. It is resistant to dust, but it may not completely keep tiny dust particles from getting in. However, any small amount of dust that does get in will not stop the solar-powered street lamp from working normally.
Level 6: The solar-powered street lamp fixture is completely dust-proof, so no dust can get inside. This is the best way to protect against dust.
The second digit shows how well the item can protect against water, from 0 to 8:
Level 5: Protected against low-pressure water jets. Low-pressure spraying from any angle of solar powered street lamps will not have harmful effects. This rating is suitable for environments with minimal direct rainfall, such as indoors or under eaves.
Level 6: Safe from strong water jets. It can keep water out for short periods of time even when there are strong waves or heavy rain. This rating is good for using in tough outdoor conditions for a long time.
IP65 solar street lights protect against dust and low-pressure water jets, while IP66 lights protect against dust and strong rainstorms and waves. Both ratings meet the standard for protecting against dust; the main difference is how well they protect against water.
Solar street lights are typically installed outdoors year-round, where exposure to intense sunlight, heavy rain, typhoons, and frost is the norm. Outdoor IP65 solar street light is sufficient for standard urban and rural roads, handling everyday rainfall without issue; Outdoor IP66 solar street light is better suited for coastal areas, mountainous regions, and areas prone to heavy rainfall or typhoons, as it can withstand torrential downpours and corrosive saltwater mist, thereby preventing moisture-induced corrosion of circuit boards and short circuits that could cause the light source to fail. A lot of cheap solar-powered street lights say they are IP67 or IP68 rated, but they aren’t and they break after only a few months of use because water gets in. Real solar streetlights have clear labels on their lamp heads, battery compartments, and controller boxes that show how well they protect against damage. They also have sealing rings and waterproof connectors that keep them safe.
TIANXIANG, a professional solar street light supplier, thinks that IP65 solar street light is enough; IP66 solar street light is stronger and more reliable. If you want to use solar streetlights outside for a long time, choose ones with an IP66 rating. Although the cost is slightly higher, it significantly reduces the failure rate, extends lifespan, and reduces later maintenance costs, providing a safety guarantee for outdoor lighting.
Welcome to wholesale our IP65/IP66 waterproof solar street lights. We are a professional solar street light supplier with stable quality and reliable performance. All solar powered street lamps are designed for outdoor use, dustproof, rainproof, storm-resistant and long-lasting. Warmly welcome merchants, contractors and distributors to cooperate with us for long-term business.
Post time: Apr-09-2026