Pacific Solar Technologies (Pty) Ltd imported solar home systems described as solar lighting kits, comprising a solar panel, a power bank (battery and controller), and LED lamps with cabling. On importation, the products were entered under tariff heading (TH) 8501.31 as electric generators. The Commissioner for the South African Revenue Service issued tariff determinations classifying two models (PVES 20W and PVES 100W) under TH 9405, later corrected to TH 9405.40.21, which covers other electric lamps and lighting fittings containing LEDs. Pacific Solar challenged the determination, contending that the essential character of the products was that of power generation devices rather than lamps. The High Court dismissed the challenge, and Pacific Solar appealed to the Supreme Court of Appeal.