Description. The Magic Box commercial grade Christmas light tester isolates twisted bulbs, empty sockets, and bad fuses by forcing electrical current through a non-working set. You can start repairing your defective incandescent lights instead of trashing them. It makes 'dollars and sense' to easily repair a set as opposed to throwing it away. 3. Some of those wire compo's look strange so I'm guessing this in a conduit installation. the box should be grounded. Make sure you're going from box to always hot and not switched hot when testing for ground. Try reading from some of those black wires back in the box. Share. The light-dark box (LDB) test is a characteristic tool used to assess anxiety in rodents. A complete behavioral analysis (including both anxiety and locomotion parameters) is not possible by As a test for behavioral phenotyping of mutant mice, the light/dark transition test is one of the most widely used tests to measure anxiety-like behavior in mice (Crawley, 2000). The test is based on the natural aversion of mice to brightly illuminated areas and on their spontaneous exploratory behavior in novel environments (Crawley, 1985). For the solid colored ones, you just make a frame with the sticks and some glue. We used school glue, but hot glue would be quicker. Let the sticks dry and then tape on the cellophane. Glue does not hold the cellophane on. We tried an orange and a purple one by doing double layers, but you could easily mix colors by placing two frames together. BEST BANG FOR THE BUCK: Southwire 41210S Circuit Breaker With GFCI Test. UPGRADE PICK: Ideal Industries 61-534 Automatic Circuit Identifier. BEST MANUAL: Extech CB10 AC Circuit Breaker Finder Light Box: I needed a light box for tracing airfoils from kites (among other things).I had some old fluorescent lights and of all things a recessed skylight box housing thing that looked perfect for the job. The light-dark box (LDB) test is a characteristic tool used to assess anxiety in rodents. A complete behavioral analysis (including both anxiety and locomotion parameters) is not possible by performing traditional LDB test protocol, as it lacks the usage of a real-time video recording of the test. In the current report, we describe an improved LLBd.