LED lighting is actively advancing. In 2011, its share in the global lighting market was 9%. It is expected to grow to almost 70% by 2020. However, in addition to the undoubted advantage of LEDs - efficiency, they have been found to have properties that affect wildlife.
Research in the UK has found that LED light attracts beetles and spiders to areas that are constantly illuminated at night. Noticeably less attention was drawn to areas where the light intensity was reduced by 50% or turned off from midnight to 4:00 am.
Seemingly inconsequential results can lead to serious problems, scientists say. The widespread use of LEDs will disrupt natural food chains and massive migration of insects to urban areas.
The results of the work were summed up by Dr.Thomas Davis of the University of Exeter:
"Our research shows the need for authorities to manage LED lighting to reduce its impact on insect and animal populations, as it can have a detrimental effect on other species, that is, the entire food chain."