UK lighting & heating simulator
Make UK wiring make sense.
A wiring simulator for UK electrical apprentices and trainee sparks. Build real lighting and heating circuits, get instant feedback on the regs, and make every mistake you need to without ever touching a live wire.
The problem
Wiring is the hardest thing
to learn from a textbook.
Textbook diagrams look simple. Real cable in a real back-box is anything but. Neither books nor limited workshop time tell you why your circuit doesn't work when you've miswired it.
Two-way switching gets confusing fast - strappers, COMs, and which core goes where on a landing.
Intermediate switching gets more confusing. Add a third switch and the crossover wiring stops making sense.
Three-plate at a ceiling rose ties most apprentices in knots the first dozen times they meet it.
S-plan and Y-plan heating - programmers, thermostats, motorised valves and a 2-port valve - rarely make sense on paper.
Sites and college workshops give limited time on the tools. Books give static diagrams. Neither lets you fail safely.
The fix
A workbench that lives in your pocket.
CableBox is a touch-based simulator for real UK lighting and heating circuits. If it works, the lamp lights or the boiler fires. If not, you find out why.
Switches, roses, lamps, programmers, valves and pumps - the kit you'd actually pull out of the van.
Route singles, twin, or 3-core cable from terminal to terminal, just like first fix.
Land every brown, blue and CPC on the right terminal, one core at a time.
Flip the switch. The lamp lights, the boiler fires, or the checker tells you exactly what's wrong.
What's inside
Everything behaves like the real thing.
Build it like you'd build it on site.
Components behave like the real thing. Switches have COMs, L1s, L2s and CPCs. Ceiling roses have neutral banks, loop terminals and lamp terminals. Cables have individual cores you have to terminate one at a time.
Get the regs right, automatically.
A built-in BS 7671 compliance checker validates your core identification as you wire. Brown to line, blue to neutral, green-and-yellow CPC sleeving at every earth terminal - anywhere you've got it wrong shows up immediately, with a clear explanation.
Progressive challenges.
Lighting challenges run from a basic switched light through two-way landing switches to full intermediate arrangements with loop-in roses. Heating challenges take you from a standalone immersion circuit through full S-plan and Y-plan installs, with fault-finding scenarios where you diagnose real wiring errors.
Sandbox for the curious.
Free-build mode lets you try anything — model a full S-plan interlock, break a Y-plan seventeen ways, or trace a loop-in rose. No objective, no checker breathing down your neck. Save your circuits, name them, and come back later to pick up exactly where you left off.
Who it's for
Built for the people
who need it most.
Level 2 & Level 3
Electrical apprentices who need reps on lighting and heating circuits between college blocks and time on site.
2365 & 18th Edition
Anyone preparing for City & Guilds 2365 or the 18th Edition who wants the wiring to be second nature.
Before an exam
Anyone revising lighting or heating wiring the night before an assessment and wanting hands-on practice, not diagrams.
A quick refresher
Qualified electricians who want to knock the rust off an intermediate arrangement between jobs.