Old School Tech has released a new article in the emergency solar Christmas light series, a topic of interest to self-sufficiency enthusiasts who need a little bit of extra light in those dark corners but don’t want to use valuable inverter capacity. This time, an easy-to-make test fixture is described which overcomes the quality problems often encountered with cheap Chinese lights. This is also a great project for a homeschool science class, as well as producing a practical and useful tool from easily available materials.