Build this 40 light Gadget cache

Video gives you instructions on how to build a gadget cache with lights. This Gadget cache has a interesting twist. As in all my videos, first we see how to solve it, then I'll give you all the instructions you will need to build this creative cache. Video was filmed in 2015. Here is and "example" of the type of lights I purchased........https://www.amazon.com/dp/B01DZIRPM4?psc=1