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 |
|---|---|---|---|
| IP20 | Objects ≥12.5mm, no dust protection | No protection against water | Indoor dry areas |
| IP40 | Objects ≥1mm, limited dust protection | No water protection | Standard custodial cells |
| IP54 | Limited dust ingress | Water splashes from any direction | Communal spaces |
| IP65 | Dust-tight | Low-pressure water jets | Bathrooms, external areas |
| IP66 | Dust-tight | Powerful water jets | 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
Light Years Ahead IP-Rated Lighting
We can help you choose the correct IP rating for your lighting project, whether it’s a high-moisture custodial washroom, dust-prone infrastructure site or a low-risk dry area.
Performance that you can trust.
Lighting available up to IP66 depending on application
Tested to perform. Tested to protect.
Independently tested and certified lighting for durable environments.
Engineered for safer environments.
Designed to work alongside other safety features (IK ratings, anti-ligature)
Made in Britain. Trusted globally.
Manufactured in the UK to ISO 9001:2015 and ISO 14001:2015