What do 'lo' and 'hi' mean in seat heating?

[McAubrey]

Seat heating 'hi' is the abbreviation of the English word 'high', referring to high-level heating; 'lo' is the abbreviation of the English word 'low', referring to low-level heating. The following is a related introduction about seat heating: 1. Introduction: Seat heating uses electric heating wires inside the seat to heat the interior of the seat and transfers the heat to the occupant through thermal conduction, improving the discomfort caused by the seat being too cold after long periods of parking in winter. 2. Heating methods: Heating methods are divided into front seat heating and rear seat heating. Front seat heating is generally found in vehicles equipped with leather material seats; rear seat heating is usually equipped in luxury cars or high-end models, such as the Mercedes-Benz S-Class, BMW 7 Series, Audi A8, etc.