Instant Water Heater and Electric Shower Calculator
Wired White v1 Size instant hot-water capacity from flow and winter inlet temperature. Compare electric current, cable voltage drop, breaker inputs, Japanese go ratings and shower cost.
#voltage drop
Wired White v1 
LED Resistor Calculator: Strings and LED Strip Voltage Drop
Wired White v1 Size LED series resistors and parallel strings, then plan 12/24 V strip feeds, voltage drop, brightness uniformity, cable size and power supplies.
12/24/48 V DC Wire Size & Fuse Calculator
Wired White v1 Size copper cables and DC fuses for inverters, solar battery circuits and car audio. Check voltage drop, thermal derating, fault interruption and alternator capacity.
Cable Size and Voltage Drop Calculator
Wired White v1 Size a cable or find its maximum current and kW at 1%, 3% and 5% voltage drop. Compare computed heating, device coordination and fault-loop limits with explicit IEC and NEC assumptions.
EV Wallbox Cable Size & Load Management: 11 kW vs 22 kW
Wired White v1 Compare 11 kW and 22 kW wallboxes, house connection headroom and load management. Check copper feeder voltage drop, entered ampacity and German installation requirements.
