An IP-rated fixture is designed to protect its internal components against dust and water. However, this protection depends on correctly installed seals, gaskets, connectors and enclosure components.
When an IP-rated fixture is opened for maintenance or repair, its sealing system is disturbed. Once the repair has been completed, the fixture cannot simply be closed and assumed to be waterproof again.
The sealing must be restored and professionally verified.
At the LYTE™ European Service Center, we use a specialised vacuum tester designed specifically for IP-rated lighting fixtures.
The vacuum tester removes air from the sealed fixture housing and measures whether the enclosure can maintain the required vacuum level. This process allows our technicians to detect even very small leaks that would be impossible to identify through visual inspection alone.
The test helps confirm that:
- The housing has been closed correctly
- The seals and gaskets are properly positioned
- The connectors are correctly installed
- The enclosure remains airtight
- The fixture has retained its intended protection against water and dust
Without the correct vacuum-testing equipment, there is no reliable way to confirm that the fixture has preserved its IP-rated protection after being opened.
A fixture may appear to be perfectly closed while still having a small leak. Even a very small sealing problem can allow moisture to enter the housing and cause:
- Condensation inside the lens
- Corrosion of electronic components
- Damage to optical parts
- Electrical failure
- Short circuits
- Permanent damage to the fixture
This is why IP-rated lighting fixtures should only be opened and serviced by trained technicians using the correct specialised equipment.
At LYTE™, we do not simply close the fixture and assume that it is sealed.
We test it.