Burn In Designs sheds some light on the subject (well, not really. The lights, themselves, are separate) with their new Stadium Light terrain kits. They’re pretty huge, actually.
From the release:
Burn In Designs is please to announce new products in our modern/scifi terrain sets. Stadium Lights Kits. These kits are designed to mimic the large stadium lights you see at sporting events. The kits stands over 14″ tall giving a commanding view of the event below. The kits are designed to easily integrate with lighting sets from Powered Play.net.