I was waiting to hear what the special design was going to do beyond saving money. Did not read one but the savings is substantial:
"Over the 40,000 LED luminaires supplied, the saving will equate to around 11,200 KWh each day - the equivalent of around 3000 average family sized homes."
Now on the other side they are going to have a fairly large amount of mercury waste to deal with in the florescent tubes and I assume and high intensity bulbs. Having participated in a number of large facility demolition/remediation projects you can box them up or bring in a bulb crusher. I could see small mercury droplets in some of the high intensity lights. I talked one project into bringing in a bulb crusher after some persuading but then that million square foot facility had radioactive material, beryllium, asbestos, mercury including airborne mercury, and a standard spread of 1940s Manhattan project hazardous materials.
LED lights developed specifically for nuclear facilities
https://www.world-nuclear-news.org/Articles/LED-lights-developed-specifically-for-nuclear-faci