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A stage light without an IP rating cannot be made rainproof on site. The only safe temporary protection is to keep rain completely off it: under a stage roof, tent or purpose-made rain cover with its vents still open, with every connector off the ground and every circuit on a GFCI or RCD. If water reaches the fixture or its connectors, shut that circuit down. When rain is likely, swap exposed positions to IP65 fixtures.
What "non-IP-rated" means for stage lights
Most indoor stage fixtures are built for dry rooms. Many are rated IP20 or carry no IP rating at all. They have cooling vents, fans pulling air through the housing, open IEC or XLR sockets, and on moving heads, gaps around the moving parts. Rain gets in through all of those openings.
Once water is inside, it can short the power supply or LED driver, corrode the circuit boards over the following weeks, and in the worst case make the housing live. Unlike an IP65 fixture, an indoor light has no seals to slow water down, so even a short downpour can do damage.
Before the gig: plan for rain
- Check the forecast for the event window, not just the day.
- Find out which positions are under a solid roof and which are open. Put indoor fixtures only in covered positions.
- Bring IP65 fixtures for any position that will be in the open. Waterproof PARs such as ZQ01417 180W waterproof PAR light are built for rain-exposed positions. Check the IP rating listed for any model you plan to leave in the weather.
- Pack rain covers, plastic sheeting, cable ties, pallets or crates to raise connectors, and a portable GFCI or RCD.
- Agree with the organizer who decides to stop the show for weather, and how.
Temporary protection options compared
| Method | Good for | Watch out for |
|---|---|---|
| Move fixtures under the stage roof or tent | Any indoor fixture | Wind-driven rain still reaches the front edge. Keep fixtures well back from open sides. |
| Purpose-made moving head rain cover | Moving heads in semi-covered positions | Must match the fixture size and leave room to pan and tilt. Check it does not block vents. |
| Rigid hood or shield above the fixture | PARs and wash lights on stands or truss | Needs a gap for air. Angle it so water runs forward and away from the cables. |
| Plastic bag or wrap around the fixture | Nothing while the fixture is powered | Traps heat, blocks the fans and holds condensation inside. Only for storing gear that is switched off. |
| Leaving it out on GFCI or RCD protection alone | Not recommended | The breaker protects people from shock. It does nothing to stop the fixture being damaged. |
Keep the airflow open
LED fixtures produce real heat, and the fans in moving heads and high-output PARs need free air. A cover that closes the vents makes the fixture overheat, dim itself or shut down mid-show, and heat shortens LED and driver life.
- A hood should sit above and slightly in front of the fixture, extend past it toward the rain, and leave open air at the sides and back.
- Do not tape over vents or fan grilles.
- Keep plastic sheeting away from the front lens of high-output fixtures, which can get hot enough to soften thin plastic.
- Rain covers made for moving heads are usually clear and shaped to the head. They are meant for light rain and covered positions, not for leaving an indoor fixture in a storm.
Protect the connectors and cables
Many rain failures start at a connector, not the fixture. Standard IEC, PowerCon and XLR connectors are not waterproof unless they are specifically marked as outdoor-rated.
- Lift every connection off the ground: onto a crate, a truss base or a stand leg. Water runs along the deck and collects at low points.
- Give each cable a drip loop just before it enters a fixture or connector, so water drips off the bottom of the loop.
- Put power joins and multi-outlet boxes inside a covered, ventilated spot or a weatherproof connector box. In Europe, outdoor sockets and distribution boxes for temporary power are commonly rated at least IP44.
- Do not use household power strips outdoors.
- Water in a DMX connector can cause flicker or random movement before it causes a power fault. Cover XLR joins too.
Electrical protection: GFCI or RCD on every circuit
Outdoor lighting circuits should run through ground fault protection: a GFCI in the US, a 30 mA RCD in the UK, Europe and Australia. Test it with its button before the show. If the venue's protection is unknown, plug a portable GFCI or RCD in at the source.
If the protection trips during rain, treat it as a warning that water has reached something live. Do not keep resetting it. Find the wet fixture or connector, unplug it, and restore the rest.
When to shut down
Switch off and unplug a circuit, at the source rather than at the wet end, when you see any of these:
- Water on or inside a lens, or droplets visible inside the housing.
- Water pooling around connectors or power boxes.
- The GFCI or RCD trips more than once.
- Flicker, random movement or fixtures dropping off DMX after rain starts.
- Lightning nearby. Stop the show and get people off metal structures, following the event's weather plan.
Losing part of the rig is better than a fixture failing or someone getting a shock.
After the rain
- Keep wet fixtures switched off. Do not power them up to "dry them out."
- Wipe the outside, take the fixtures out of their road cases or leave the lids open, and let them dry at room temperature with air moving around them. Do not open sealed housings.
- If gear comes in from the cold, leave it closed in its case for an hour or two before opening, so condensation forms on the case and not inside the fixture.
- Check connectors for water and corrosion before the next show.
- If water got inside a fixture, have it checked before you use it again. Contact the seller or a service technician, especially if it is under warranty.
FAQ
Can I put a plastic bag over a moving head in the rain?
Not while it is running. A bag traps heat, blocks the fans and holds condensation against the fixture. Use a purpose-made rain cover that leaves the vents open, move the fixture under cover, or switch it off and bag it until the rain passes.
Is a GFCI or RCD enough to run indoor lights in the rain?
No. It reduces shock risk by cutting power when current leaks, but it does not keep water out of the fixture. You still need to keep rain off the light and the connectors.
What IP rating do stage lights need for rain?
For fixtures standing in open rain, most crews use IP65 or higher. IP65 means dust-tight and protected against low-pressure water jets from any direction. It does not mean submersible, so keep IP65 fixtures out of standing water and protect their cable connections too.
My light got wet but still works. Is it fine?
Not necessarily. Water left inside can cause corrosion that shows up days or weeks later. Dry it thoroughly while it is switched off, and if water reached the inside, have it checked before the next show.
