Choosing the Right IP65 Outdoor Fixture

September 12, 2026 · RiGeBa Lighting Team · How-To

Outdoor installation is where indoor fixtures go to fail. Rain is the obvious problem, but the one that kills fixtures quietly is condensation — a sealed housing that cools overnight pulls moisture in through any unsealed joint, and it corrodes from the inside where nobody sees it until the fixture stops responding.

The short answer

Specify IP65 as the workable minimum for permanent outdoor installation, and confirm the rating applies to the complete assembled unit — head, yoke and connectors — not just the housing. IP54 covers splash only and is a poor fit outdoors. Budget from US$185 EXW for a sealed 6×40W outdoor moving head, and expect US$590 to US$757 once output and a beam class are added.

What does each IP rating actually protect against?

The second digit is the one that matters outdoors, and the steps are not small.

The practical line is between IP54 and IP65. IP54 survives a splash on a dry day; it does not survive a season of rain.

Which outdoor fixtures are actually available?

These are real models with real EXW prices from our current range, filtered to IP65 and above:

Two things stand out. First, sealing has a floor price: the cheapest outdoor moving head in the range is US$185, above several indoor fixtures with more output. Second, the spread from US$185 to US$757 is driven by output and class, not by how weatherproof the fixture is — every fixture in that table is already IP65.

Does an IP65 rating cover the moving parts?

Not automatically, and this is where most outdoor specifications go wrong. A moving head has bearings, a yoke joint and usually a fan. Each is a path for water and, more importantly, for moisture on the cooling cycle.

Ask for three things in writing:

1. The rating stated for the complete assembled fixture, not the housing alone.
2. Which mechanical joints are sealed, and how the yoke bearing is protected.
3. Whether the fixture is pressure-tested, and at what interval during production.

A supplier who cannot answer the second question is selling a housing, not an outdoor fixture.

Why does an outdoor fixture cost more?

The optical and power components are largely the same as indoors; the money goes into everything that keeps water out and heat moving. Sealed connectors, gaskets, conformal coating on the driver boards, a longer factory burn-in, and an enclosure that can be opened for service without destroying the seal.

The service question is the one buyers forget. An outdoor fixture has to be maintainable after two years in the weather — if opening it requires replacing a one-piece gasket that is not stocked as a spare, the fixture has a service life set by the gasket, not by the LED.

What else has to survive outside?

The fixture is often the last thing to fail. Check these at the same time:

• Cable — outdoor-rated, UV-stable, and sized for the run.
• Connectors — IP65-rated, off the ground, hanging so water cannot pool in the shell.
• Mounting — stainless or hot-dip galvanised; check for galvanic corrosion after season one.
• Drainage — no fixture should sit in a puddle, and flat roofs always puddle somewhere.
• Voltage — long outdoor runs drop more voltage than indoor ones; a fixture rated AC110-240V tolerates it, a fixed-voltage one does not.
• Condensation — the overnight cooling cycle pulls moisture into any unsealed joint, so a fixture that is dry in the morning can still be corroding inside.
• Cleaning — salt, dust and pollen on the front glass cost output; a sealed fixture still needs the glass wiped on a schedule, or its beam degrades season by season.

How should an outdoor fixture be mounted and serviced?

Mounting decides most of an outdoor fixture's service life, and it is decided before the fixture is ever powered.

• Angle it so water cannot pool. A fixture with a flat top and no drain will hold water on the top face; a few degrees of tilt removes the problem at no cost.
• Point connectors downward. A connector with the shell opening upward will fill with water, whatever its IP rating.
• Leave service access. A fixture that needs a lift and a second person to open will not be maintained; the ones that fail outdoors are usually the ones nobody could reach.
• Keep it out of standing water and off surfaces that hold moisture. A puddle on a flat roof finds the lowest fixture every time.
• Replace gaskets on a schedule, not on failure. A gasket is a consumable with a service life shorter than the LED's, and it should be in the spares order.

Write the mounting angle, connector orientation and gasket interval into the installation drawing. The next person to work on the roof will thank you.

What to do next

Measure two things before you order: the throw distance from each mounting position, and the worst weather the position will see — driven rain, coastal salt, or washdown. Then send us the positions with the distances and we will quote the two or three sealed fixtures that cover them, including the 6x40W outdoor moving head that sits at the entry point of the range and the higher-output units for long throws.

Frequently Asked Questions

Need help choosing fixtures for your project? Tell us the venue type and room size — we'll spec it for free.