Keadic 10 Pieces Series or Parallel D Battery Holders for Physics Laboratory School Electronic Experimenting Ideal for Demos Teaching Basic Principles of Electricity and How a Simple Circuit Works

? Why Choose Keadic Physics Electronic Science Experiment Kit? ? Great for home school making and breaking a single electrical connection circuit experiments. ? Good for teaching basic principles of electricity & how a simple circuit works. These are great for practical demos project in school physics classes. ? Easy to use and great learning tool for kids, let students do it and it will deepen students’ impression of physics theoretical courses and enhance their interest in physics learning in a big degree. ? Products Specification: ? Material: insulating plastic, copper with great conductivity? ? Rated voltage: 2.5 volts; max voltage is 6 volts ? Rated current: 3 amps; ? Size: ? D Battery Holder: 74mm × 38.2mm × 36.4mm (L × W × H); ? Package Content 10Pcs × D Battery Holders ? Warm Tips: ? 1. The children under 6 years old should operate it under supervision of teacher or parent; ? 2. Must remind the students not to play with actual electrical equipment around the house; ? 3. Please notice the rated voltage & rated current to use them on suitable circuit projects.