BA9S-X-XVAC-LAN BA9s LED Landscape Light Bulb – 1 LED – BA9s Retrofit – 5 Lumens. LED BA9s bulbs are commonly used in numerous industrial applications such as indicator lights and control panels. This BA9s single-contact LED bulb replaces a variety of traditional bulbs including 1445 and 17053 bulbs. It has 1 LED that is positioned on the top of the bulb inside a white glass cover and emits a narrow 15° or wide 180° viewing angle. 9-mm Miniature bayonet base for easy plug-and-play installation—just twist to lock in place.