I think the silkscreen for the diodes in this kit may be incorrect. My guess is 2 need to be reversed? They are LM317 regulator kits from Ali. : r/diyelectronics
TVS Diode Product Catalog Datasheet by Littelfuse Inc. | Digi-Key Electronics
Shenzhen Skoe Technology SKE-TKZ-Y04 3-in-1 Sky Moon Light User Manual
Solved 4. (15-points) Find the values of I and V for the | Chegg.com