Colour Rendering Index (CRI)
CRI means the light source's ability to reveal the colour of objects faithfully in comparison with natural sunlight. The index is measured from 0-100, with a perfect 100 indicating that colours under light appear the same as they would under natural sunlight. Generally, a CRI of 80 - 90 will be within the range of accurate colour rendering.
If prefer to have your lights rendering beautiful, vibrant tones across the full-colour spectrum we recommend a high CRI (90+) in combination with a colour temperature that's middle of the range (4000K).
Downlight Lifespans
This, of course, depends on the type you invest in. Halogen downlights last for 2,000 hours on average. Many find that they replace the majority of their halogen globes within a 12-18 month period.
For LED downlights, the lifespan is 50,000 hours, which is around 27 years if it's switched on 5 hours a day. As you can see these are far more cost-effective in the long run.
We still get asked a lot in store how do you change a LED downlight? this depends on if it is built in or not. Most these days are built in with a fixed light and driver separate with a plug like the picture below, when the light is built in you can only replace the whole fixture including the downlight driver. The driver is engineered to run with this light only, you can't just buy another driver to run the light you must replace the whole downlight kit.
