Understanding LED Luminaire Lifespans

Understanding LED Luminaire Lifespans

The stated life of LED luminaires can often be difficult to understand when you’re not used to seeing the abbreviations used. You may have seen an LED luminaires lifespan being shown something like this:

60,000 hours at L80B10 25°C 

This is a standard that is used to show the lifespan of LED chips. If you’re not used to this terminology it can seem alien at first, however it can be broken down very easily:

  1. L – All luminaires are designed to output a given amount of luminous flux.  L80 means that the chips are tested to achieve 80% of their luminous flux for the period stated.
  2. B – The second element is the percentage of luminaires within a given installation that may be below the L value within the stated lifespan.
  3. Lifespan – The lifespan itself is normally defined as hours
  4. Operating temperatures – Many products also state an optimal ambient temperature.

Example of Luminous Flux over time

LED Lifespan Chart

L80B10 Example

LED Lifespan Pie 01

Example 1: 60,000 hours at L80B10 25°C 

90% of the LED units will maintain at least 80% of their original designed luminous flux for 60,000 when operating at 25°C 

Example 2: 50,000 hours at L70B20 35°C 

80% of the LED units will maintain at least 70% of their original designed luminous flux for 50,000 when operating at 35°C 

 

Latest LED Technology…

Banner Image-01

Areon

The Areon bollard connects paths and outdoor areas. Two light distributions and three construction sizes enable nuanced lighting designs with just a single luminaire range. Its innovative optical lens creates either light distribution aligned at 180° to one side for paths, or 360° light distribution for open areas. The absence of upward light ensures that […]

Lumenia_ S LUM Mini

S-LUM Mini

An innovative road lighting luminaire of modular construction designed with ease of maintenance in mind. Tool-less upgrades of key components such as power supply and light engine along with field-replaceable LED modules ensure the luminaire takes full advantage of future improvements in LED technology. With a lifetime of 100,000 hours (L80B10) combined with an efficacy […]

challenger-1-led-6mod-2400-1600

Challenger 1 LED

Overview The Challenger 1 LED represents the cutting edge of floodlighting technology, combining unrivalled performance with a rock bottom cost of ownership and sleek modern design. Flat glass, double asymmetric floodlight  Elegant and unobtrusive low profile design Available in 2, 4 and 6 module variants from 400W to 1500W Abacus designed medium and narrow light […]

CHALLENGE

Indus LED

Benefits Modern looking slim line luminaire for a positive aesthetic feel in a variety of surroundings and application areas Fitting equipped with an automatic anti-closing mechanism for safer assembly, installation and maintenance purposes reducing health & safety risks Colour Silver Technical Features Classification I IP66 and IK08 rated Constructed to meet EN 60598-1, EN 60598-2-3 […]