The SCT-Germany 203072 R2 G40 12V 45/40W P45T Basic incandescent bulb is a halogen or standard automotive bulb (type R2) with a P45t base, designed for headlights (low/high beam) with a 12-volt on-board network voltage. The power is 45/40 watts. Used in classic cars.

Main characteristics (article 203072):

Type: R2 (halogen or incandescent).
Base: P45t.
Voltage: 12 volts (for passenger cars)
Power: 45/50 watts (45 watts for high beam, 40 watts for low beam).
Purpose: Main beam, headlights.
Series: Basic.