IP67 vs IP68 LED Modules: A B2B Buyer's Guide to Waterproof Signage Lighting

Two signage contractors win the same outdoor retail project. Six months later, one is replacing modules after the first heavy rain. The other is still waiting for a maintenance call. The difference was not the brand name on the box. It was the IP rating on the datasheet and the led module supplier behind it.

Outdoor LED signage has to survive dust, humidity, direct spray, and temperature swings. Choosing the right protection level is not a marketing detail. It is an engineering decision that affects warranty costs, reputation, and repeat business. This guide explains what IP ratings mean, where IP67 and IP68 fit, and how to evaluate a supplier before you specify a product.

What an IP Rating Actually Tells You

IP stands for Ingress Protection. The rating has two digits. The first digit measures protection against solid particles like dust. The second digit measures protection against liquids. A higher number means better sealing.

For outdoor signage, the first digit almost always needs to be 6, which means complete dust protection. The second digit is where the decision gets interesting. IP67 means the module can handle temporary immersion in water up to one meter for about 30 minutes. IP68 means the manufacturer has tested the module for continuous immersion under conditions that the supplier specifies, usually deeper and longer than IP67.

IP67 vs IP68 at a Glance

When IP67 Is the Right Choice

ip67 led module products work well in most outdoor sign applications. They handle rain, splashing, dust, and high-pressure washing. If your project involves channel letters, building signs, shop fascia, or light boxes that are mounted under an awning or on a wall, IP67 is usually enough.

Specify IP67 when:

• The sign is vertical or angled so water runs off naturally.
• The installation is above ground level and not in a flood zone.
• The customer expects standard outdoor durability without continuous submersion.
• You want a cost-effective solution that still carries a weatherproof seal.

When to Specify IP68

ip68 led module products are built for harsher conditions. They are the safer choice when the sign will sit in standing water, endure prolonged exposure to heavy spray, or operate in environments where condensation and pooling are common.

Consider IP68 for:

• Ground-level monument signs and pylons in flood-prone areas.
• Marine environments, docks, or poolside installations.
• Underwater accent lighting or fountain features.
• Industrial sites where high-pressure cleaning is routine.

The Details That Matter Beyond the Rating

An IP rating is only as good as the assembly around it. A module with a high rating can still fail if the cable entry, adhesive, or lens seal is weak. When you review samples, check the following:

• Sealing method: Look for ultrasonic welding, potting compound, or dual-layer seals rather than simple glue lines.
• Cable glands: Wires should enter through sealed glands, not open holes.
• Thermal management: Waterproofing can trap heat. A good module balances sealing with heat dissipation.
• UV resistance: Outdoor housings should resist yellowing and brittleness.
• Certifications: CE, RoHS, UL, and Reach markings indicate that the product has been tested against recognized standards.

Waterproofing Across the Product Range

Modules are not the only components that need protection. A sign is a system. If the module is IP67 but the power supply is open-frame, the installation is still vulnerable. The same logic applies to waterproof led strip lights, neon flex, and rigid bars used in the project.

A full-service led module supplier can help you match protection levels across the entire sign. That coordination is what separates a collection of parts from a reliable lighting system.

HansonLed's Approach to Outdoor LED Signage

HansonLed Ltd has been manufacturing LED modules, strips, rigid bars, and neon flex since 2013. The 2,500 sqm facility in Shenzhen serves customers in more than 80 countries, with certifications including ISO9001, CE, RoHS, PSE, UL, and Reach.

The product range includes IP67 and IP68 rated modules for channel letters, light boxes, and cabinet signs. Options cover mini modules, high-efficiency series, RGB pixels, and high-voltage lines. With OEM and ODM support, custom sizes, logos, and colors are available for projects that need more than a standard catalog item.

HansonLed's production lines use advanced SMD LED technology, and the in-house R&D team develops custom products when an off-the-shelf module does not fit the application. The 24-hour online service team supports buyers across time zones.

Quick Selection Checklist

• Define the worst-case water exposure, not just average weather.
• Choose IP67 for rain and splash protection; choose IP68 for immersion or prolonged wet conditions.
• Inspect seals, cable entries, and housing quality on samples.
• Match the protection level of modules, strips, power supplies, and controls.
• Request certifications relevant to your target market.
• Confirm warranty, lead time, and sample policy before placing volume orders.

Make the Right Choice Before the Rain Does

Outdoor signage failures are expensive to fix and hard to explain to a client. Specifying the right IP rating up front is the easiest way to avoid callbacks. If you are sourcing waterproof LED modules for signage, start with a supplier that understands the difference between a number on a datasheet and a product that has to perform in the field.