Question
ETS Lite is limited to 20 devices per project, whereas ETS Professional has no such limit.
Answer
True
ETS6 Lite is capped at 20 devices per project, which is enough for an apartment or small house. ETS6 Professional has no practical device limit and is the standard tool for commercial or larger residential projects. ETS6 Inside (older positioning) targeted simple self-installation scenarios. The 12.5% voucher granted after passing the Basic exam applies to ETS Professional.
Preparation tip
When scoping a project around the 20-device threshold, plan for ETS Professional early — migrating mid-project is workable but introduces friction.
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