LED technology has revolutionized lighting as it has a significantly longer lifespan and can be up to 10 times more energy efficient compared to older types of lighting technology.  LED light strips are a popular choice of lighting when it comes to LEDs.  It can be used in a wide variety of applications including accent lighting or under-cabinet lighting.

Understanding the LED Lifespan

The lifespan of LED light strips are typically measured by the number of operational hours before the light output degrades to 70% of its original brightness or lower.   LEDs when they start to fail tend to dim over time rather than failing completely.  This is sometimes referred to as the L70 standard.  High quality LED strips are rated to last 25,000 to 50,000 hours on average.

Factors Affecting LED Strip Lifespan

1. Heat Management (Crucial Factor)

Heat is the greatest factor that can affect LED lifespan.  If there is not sufficient heat dissipation available for your LED strip this can cause its lifespan to shorten.  This can be solved by using an aluminium profile to help to dissipate the heat.  

2. Quality of Components

The quality of the components used in the strip and the connected LED driver can also impact the longevity of the LED strip.  If you purchase a quality LED driver that is covered by a warranty period you should not have an issue with this.

3. Operating Current

LED strips are rated for a specific current draw (such as 12V or 24V).  Overdriving the LEDs (running them at a higher current than intended) can make them brighter but will generate excessive heat and dramatically reduce their lifespan. 

If you are looking to dim the lights you will also need to make sure your dimmer switch is rated for the same current draw.

4. Environmental Conditions

• Humidity and Moisture: Ingress Protection (IP) rated strips are necessary for wet or damp locations including bathrooms or outdoors.  For this you will need LED strip that is IP65 rated or above. 
• Voltage Fluctuations: Unstable power sources can stress the components within the LED strip causing it to fail prematurely. Surge protectors can help to reduce this risk.