Bench power supply for classroom, 1 shared or many cheap?
Posted: Sun Jul 05, 2026 5:00 am
STEM lab budget. Two ways to power 10 student benches:
Sharing = bottleneck during class. Ten cheap = no current limiting, students can fry parts.
Teachers: how do you power multiple benches safely on a budget? Adjustable-with-current-limit matters for teaching (short circuit = learning moment, not fried board).
- One good bench supply (Korad KA3005P, ~PHP 6000), students share/queue
- Ten USB-based buck modules + phone chargers (~PHP 300 each), one per bench
Sharing = bottleneck during class. Ten cheap = no current limiting, students can fry parts.
Teachers: how do you power multiple benches safely on a budget? Adjustable-with-current-limit matters for teaching (short circuit = learning moment, not fried board).