IP Testing for Lighting

When choosing lighting for demanding environments, ingress protection is essential. Ingress Protection (IP) ratings indicate how well a fitting is sealed against dust, dirt and water which helps you select the right product for its location and use.

What is an IP Rating?

An IP (Ingress Protection) rating is an internationally recognised standard defined by IEC 60529. It uses two numbers to describe the level of protection:
First digit – protection against solid objects like dust or debris (0–6 scale)
Second digit – protection against liquids such as splashes or immersion (0–8 scale)

Example: IP65
“6” = Dust-tight, no ingress of dust
“5” = Protected against low-pressure water jets from any direction

IP Rating Chart

At Light Years Ahead, our luminaires are independently tested to international standards, ensuring they meet or exceed the IP rating specified. This guarantees performance in settings where reliability, hygiene and safety cannot be compromised.

IP Rating Solids Protection Liquids Protection Typical Applications
IP20Objects ≥12.5mm, no dust protectionNo protection against waterIndoor dry areas
IP40Objects ≥1mm, limited dust protectionNo water protectionStandard custodial cells
IP54Limited dust ingressWater splashes from any directionCommunal spaces
IP65Dust-tightLow-pressure water jetsBathrooms, external areas
IP66Dust-tightPowerful water jetsOutdoor or washdown areas
IP Rating IP20 Solids Protection Objects ≥12.5mm, no dust protection Liquids Protection No protection against water Typical Applications Indoor dry areas
IP Rating IP40 Solids Protection Objects ≥1mm, limited dust protection Liquids Protection No water protection Typical Applications Standard custodial cells
IP Rating IP54 Solids Protection Limited dust ingress Liquids Protection Water splashes from any direction Typical Applications Communal spaces
IP Rating IP65 Solids Protection Dust-tight Liquids Protection Low-pressure water jets Typical Applications Bathrooms, external areas
IP Rating IP66 Solids Protection Dust-tight Liquids Protection Powerful water jets Typical Applications Outdoor or washdown areas

Why IP Ratings Matter in Our Lighting

When lighting mental healthcare, custodial, transport and infrastructure environments, the correct IP rating ensures:

  • Safety: Prevents moisture or dust from compromising electrical components
  • Durability: Protects luminaires from cleaning procedures or weather exposure
  • Compliance: Meets sector-specific guidelines standards
  • Reduced maintenance: Less risk of damage or failure over time