The two digits
The first digit (6) rates dust ingress: 6 is the maximum — 'dust-tight,' nothing gets in. The second digit (7) rates water ingress: 7 means submersible to one meter for 30 minutes without leaking.
So an IP67 fixture can sit at the bottom of a kid's pool for half an hour and still light up. Sprinklers and rain aren't even close to a stress test.
Why dust matters here
Central Valley summers are dry and dusty — agricultural drift, the occasional Bakersfield haboob. Dust-tight matters more in Fresno than waterproof, honestly. Anything less than IP6X starts collecting silt internally and dimming over a few seasons.
What IP67 doesn't cover
UV rating, temperature range, and impact resistance are separate specs. The Jellyfish RGBIC-RD chips we install are also rated -40°F to 140°F and the aluminum track is anodized for UV — but IP67 alone doesn't tell you that. Always ask for the full spec.
