What is FAT (Factory Acceptance Test)?

Why FAT matters, and what to expect when we test your panel.

FAT (Factory Acceptance Test) is the testing we do before shipping your control panel

Why it matters: catches issues before the panel reaches your site, saves commissioning time, gives you confidence

What FAT includes: visual inspection (wiring, labeling, cleanliness), power-on test (verify voltages, indicators), function test (simulate inputs, verify outputs), documentation review (schematics, BOM, test report)

What you receive: signed FAT report, test data, photos

Should you witness FAT? For small panels, no need (we send report)

For large projects, video call or on-site visit recommended

At Yiguangnian, every control panel passes FAT before shipment

We send photos and test reports, and welcome customer witnessing by video call.