USA bus check brake light light is clear and lights up the colour of the bulb. It should come on when the handbrake is on because there is a switch. It will also come on if you have low brake fluid
Cheers @pkrboo I took my van out this week, first time all year and had a shufti (it's not kept at home) and I have no lense covering the bulb! I shall now look for one
Try Wiltsfalia. He had a few when I bought mine. Mine was four pins, but he sent me a five pin and it still works.