IP67, the international protection marking indicates the protection rating of electrical equipment from foreign objects.

The first figure 6 represents no ingress of dust. The second figure 7 indicates the protection from immersion in water with a depth of up to 1 meter (or 3.3 feet) for up to 30mins.

OPT waterproof light conforms to IP67 rating, which can be used in humid and dusty environments. All OPT lights can be designed to be dustproof and waterproof.