Unipart LED Ground Position Light Signal

Very bright when you are in the beam axis.

Ground position light signals (GPLS), are always illuminated and are located either near the ground or on a post with no corresponding main signal. They can display the following aspects:

Either two red lights or one white light and one red light in a horizontal arrangement, meaning 'Stop'.

Two white lights at a 45° angle, meaning 'Proceed'. The driver may pass this signal with caution at a speed that allows the train to stop short of any obstruction.