Do you need to verify the real consumption of electronic components (such as LEDs, motors, cards, etc.) that fall within the range of 0-100 Volt DC?
This box is for you, simple to make with a 3D printer and the material used is PLA.

I attach links for the possible purchase of the material necessary for completion, feel free to purchase on other platforms as well:

1) https://www.amazon.it/Generico-Elettroforniture-WATTMETRO-VOLTMETRO-AMPEROMETRO/dp/B08W9W73CK/ref=sr_1_13?__mk_it_IT=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=2Q0SHO4DJPQKS&keywords=voltmetro+digitale+amperometro+wattmetro&qid=1705528853&sprefix=voltmetro+digitale+amperometro+wattmetro%2Caps%2C79&sr=8-13

2) https://it.aliexpress.com/item/4001206395694.html?spm=a2g0o.productlist.main.47.6a17108dZ4mvdX&algo_pvid=66be3bc4-7b0b-42a8-8164-5fc974b24dce&aem_p4p_detail=202401171411347867656557528080001748163&algo_exp_id=66be3bc4-7b0b-42a8-8164-5fc974b24dce-23&pdp_npi=4%40dis%21EUR%210.77%210.66%21%21%210.82%210.70%21%40216661c117055294942033954ee629%2110000015299183195%21sea%21IT%211631403285%21&curPageLogUid=zeMpOGKBOWWQ&utparam-url=scene%3Asearch%7Cquery_from%3A&search_p4p_id=202401171411347867656557528080001748163_24

3) https://www.shard-lab.it/-ricambi-vari-per-casse-acustiche/2452-coppia-morsettiera-a-molla-4-poli-altoparlante-casse-acustiche-2-pz.html