Green LED Demonstration Board Capacity_1000mL and protein separation across three

and protein separation across three selectable ranges (0-50V

this electromagnet on a 4mm-terminal base slots inline with other modules for circuit-driven magnetism work

the hBAR infrared thermometer can accurately tell the temperature

this insulated wire keeps polarity color-coded across the mid-reach branches of small-scale breadboarded circuits

Plastic-cased introductory electronics kit with 10 lamp holders+bulbs

Green LED Demonstration Board Capacity_1000mL and protein separation across threeUsed to introduce LED polarity and forward bias behavior, this green LED on a demonstration base with 4mm plug connections lights up when current flows in the correct direction.