When selling outdoor LED strips on Alibaba.com, one of the most frequent buyer questions is: "What's the difference between IP65, IP67, and IP68?" Understanding these ratings is critical for Southeast Asian exporters because choosing the wrong configuration can lead to product failures, negative reviews, and lost repeat orders.
The IP (Ingress Protection) rating system is an international standard that defines how well a product is protected against solid objects (like dust) and liquids (like water). For LED strips, the first digit (6) means dust-tight - no dust can enter. The second digit is what varies and determines water resistance.
IP Rating Comparison for Outdoor LED Strips
| IP Rating | Dust Protection | Water Protection | Real-World Meaning | Best For |
|---|---|---|---|---|
| IP65 | Dust-tight (100%) | Low-pressure water jets from any direction | Protected from rain under covered areas | Sheltered outdoor: covered patios, eaves, indoor damp areas |
| IP66 | Dust-tight (100%) | High-pressure water jets from any direction | Can handle heavy rain and hose-down cleaning | Exposed outdoor: building facades, signage, industrial areas |
| IP67 | Dust-tight (100%) | Temporary immersion (1m depth, 30 minutes) | Survives rain, snow, accidental submersion | Garden, poolside, pathways, rainy climates |
| IP68 | Dust-tight (100%) | Continuous submersion (manufacturer-specified depth/time) | Can stay underwater indefinitely | Swimming pools, fountains, underwater features |
The Critical Misconception About IP65
Many buyers - and even some suppliers - mistakenly believe IP65 means "waterproof for outdoor use." This is dangerously incorrect. IP65 protects against low-pressure water jets, which simulates rain falling at an angle. However, it does NOT protect against:
- Standing water accumulation
- Direct heavy rainfall over extended periods
- Humidity buildup inside the LED strip housing
- Temperature cycling that causes condensation
As one Reddit user with real installation experience put it: "IP65 is considered temporary outdoor, not suitable for permanent outdoor installation. IP66 and above is what you're looking for." [4] This feedback came from a buyer whose customer's IP65 lights failed after rain storms, resulting in corrosion and complete failure.
IP65 is considered temporary outdoor, not suitable for permanent outdoor installation. IP66 and above is what you're looking for. We had a customer who bought IP65 and they failed after a couple rain storms. Corrosion got all through them. [4]
Nobody said IP65 is waterproof. [5]

