Wind Energy Is A Long-Term Investment.
We Help You To Protect It.

Dialight BTI A/S is the market leader in supplying aviation obstructions lights
and marine aids to navigation solutions for the wind industry.

We develop & deliver state-of-the-art solutions that prevent collision with air traffic and maritime navigation enabling your wind project to comply with international and national regulation. 

We Work With the Best Companies In the World

Our customers for our aviation obstruction and aids to navigation products are virtually all wind turbine manufacturers such as Alstom, Areva, GE, Gamesa, Nordex, Senvion, Siemens and Vestas, the major foundation manufacturers such as Bladt Industries, EEW and Smulders, energy utilities such as Dong Energy and RES and wind service companies working in the field of retrofitting such as Deutsche Windtechnik.

See our References

Our aviation obstruction and aids to navigation components have been installed in more than 40 offshore wind projects.

Our Products


Since the 1990’s, we have supplied aviation obstruction lights to the wind industry, constantly improving and expanding our product portfolio.


Our first offshore project to be supplied with Dialight BTI’s solution dates back to 2000. Our marine aids to navigation components are today installed in all major offshore markets.

More info


Have a question? Need information? Get in touch


We do not only sell products — we offer complete service packages. See our Services


Looking for someone? Want to see who we are? Meet Dialight BTI

Recent News