If you are buying a logo projector to mount outside a shop, the spec sheet will show you two almost identical ratings — IP65 and IP66 — with a price difference. Here is what that difference actually buys you.
Reading the two digits
IP means Ingress Protection. First digit = dust, second digit = water.
|
Rating |
Dust |
Water |
In plain terms |
|
IP65 |
Fully sealed (6) |
Water jets, any direction (5) |
Handles rain and hose-down |
|
IP66 |
Fully sealed (6) |
Powerful water jets (6) |
Handles heavy rain and pressure washing |
|
IP67 |
Fully sealed (6) |
Brief immersion to 1m (7) |
Handles flooding |
Dust protection is identical across all three. The only variable is water pressure.
When IP65 is enough
Under an awning, a canopy, a recessed ceiling, or any overhang — IP65 is enough. Rain in a sheltered position never hits the housing at pressure. Paying for IP66 on a covered wall buys you nothing you will ever notice.
When you actually need IP66
Exposed pole or wall mounting with no overhead cover, where wind drives rain sideways into the housing.
Coastal locations. Salt spray combined with wind pressure is more aggressive than rain alone, and salt corrodes seals faster.
Storefronts that get pressure-washed. If your facade is cleaned with a jet washer weekly, the projector will get hit too.
High-wind corridors between buildings, where rain travels almost horizontally.
The problem neither rating solves
Condensation.
A sealed projector warms up during operation and cools when switched off. Moisture already present in the air inside the housing condenses on the inside of the lens. No IP rating prevents this, because nothing entered from outside.
It is the single most common reason outdoor projectors fail — and the symptom ("the lens is foggy") looks like a water leak, so buyers assume the rating was a lie. It usually was not.
What actually helps: a pressure-equalizing breather valve or a desiccant cartridge, plus mounting the unit so the lens faces slightly downward. Ask whether the unit includes one. Many do not.
What else kills an outdoor projector
Ranked by how often we see them:
- Condensation inside the lens
- Overheating — blocked vents or an undersized housing
- Water tracking along the power cable into the gland
- UV degradation of plastic housings over 2–3 years
- Genuine water ingress through a failed seal
The IP rating only addresses item 5. Everything above it is about installation.
Five things to check before mounting
- Mount under cover if possible. Even a small overhang changes the water load.
- Point the cable entry downward. Water follows cables. This single detail prevents most failures.
- Keep ventilation clearance. Never enclose the housing in a box.
- Confirm the operating temperature range if you get real winters.
- Read the warranty exclusions. Some IP66 warranties exclude water damage in the fine print.
The specs that decide whether the logo looks good
IP rating is about survival. These three decide quality:
Wattage vs distance. A 25W unit produces a sharp logo at 3–6 meters. For 10 meters on a building facade, you need 60W or more. Too little power gives a soft, dim image that customers read as an unprofessional sign.
Beam angle and focus. Fixed-focus units are sharp at exactly one distance. Adjustable focus matters if the mounting position might change — for instance, if you move premises.
Pattern disc quality. Most logo projectors ship with a glass or steel pattern disc for your logo. Glass holds fine detail and heat far better than steel; if the unit runs at high wattage for many hours a day, glass is the only option that lasts.
Control method. Remote, app, or DMX. A shop that changes its projected message weekly wants app or remote control; a fixed storefront sign does not need it.
Quick decision table
|
Mounting situation |
Rating you need |
|
Under awning or canopy |
IP65 |
|
Recessed into a wall |
IP65 |
|
Exposed pole, open sky |
IP66 |
|
Coastal / salt spray |
IP66 |
|
Pressure-washed facade |
IP66 |
|
Flood-prone street level |
IP67 |
|
Indoor shop window |
IP20–IP44 |
Frequently asked questions
Does IP66 cost much more than IP65? Typically 10–20% more for the same wattage. If your mounting is sheltered, putting that money into higher wattage gives a better result.
Can I use an indoor projector outside under a canopy? Only if it is at least IP65. Indoor units (IP20–IP44) will fail within one wet season.
Will an IP66 projector fog up? It can. Fogging is condensation, not ingress. A breather valve or desiccant helps.
Is IP67 worth it for a shop? Only if the mounting point genuinely floods. Otherwise it is unnecessary cost.
How long do outdoor logo projectors last? A quality IP66 unit runs 5–8 years with correct mounting. Most failures trace back to installation, not the unit.
Looking for a weatherproof logo projector?
We supply IP65-rated outdoor logo projectors from 25W to 300W, with remote or app control and pattern discs made for your logo. Ships in 3 days. See the range at anrotix.cn or message us on WhatsApp: +86 15958130611.