The relays for the electrics appeared from about 1985 until MPI cars in 1996, these fit behind/under the dash and are colour coded pink for identifact
Automotive lighting - Wikipedia
Bypass the Dim/Dip relay - Land Rover Expedition
[BOSCH EXPERTISE] - Bosch has been producing relays for vehicles and other applications for more than 40 years - this vast development experience
BOSCH 0986332002 Normal Open Mini Relay - 4 Pins, 12 V, 70 A - Single
5PCS AC 110V 220V Power ON Delay OFF Relay Switch 1-480Min Timer Adjustable Disconnect Delay Controller - AliExpress
New Old Stock Song Chuan 792-1A-1C 12VDC 30amp SPST-NO Relay & Wired Relay Socket with 4 Foot Wire Leads and In-Line Fuse Holder, This Socket is
792-1A-1C, 12V DC @ 30A SPST-NO Automotive Relay & Socket w/Inline Fuse Holder
Smart WiFi LED Dimmer Switch, 220V/110V/230V AC Triac, 2.4G RF Remote Control, S1 B Push Switch Compatible With LED Lamps From Jeromepeng, $5.21
7pin Pink Headlight Dim Dip Relay Land Rover to 16 Classic Mini YWC10050L LUCAS
CLASSIC MINI DIM Dip Control Relay Unit YWC10050 pink land rover Lucas £28.95 - PicClick UK
Progressive Dynamics PD1610J 1001 Watt Pure Sine Wave Inverter