IP65 vs IP66 vs IP67 Comparison
Water and dust protection levels explained.
All three ratings survive rain, yet they are tested against very different water conditions: a 6.3 mm nozzle at 12.5 L/min, a 12.5 mm nozzle at 100 L/min, and temporary immersion. Over-specifying wastes budget; under-specifying turns into warranty claims.
| Comparison | Option A | Option B | Option C | Winner |
|---|---|---|---|---|
| Water jets | Yes (low pressure) | Yes (powerful) | Yes | IP66 |
| Immersion | No | No | 1m | IP67 |
| Typical use | Outdoor walls | Coastal, heavy rain | In-ground | Application-dependent |
Conclusion
IP65 is the practical minimum outdoors. Step up to IP66 for coastal sites, washdown zones and façades hit by wind-driven rain. IP67 belongs to fixtures that may sit in standing water — in-ground uplights, fountains, docks — not to general outdoor lighting.
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Post a sourcing brief → Compare more products📋 Authoritative Standards Reference
IEC 60529 · CIE 13.3 · ANSI C78.377 · IES LM-79 / LM-80 · UL 1598 / UL 8750 — data verified by the CompareDeals team.