L3 18UM 1800-2300 FOM tube (easy on/off pigtail suitable for most devices)

For the more rural use or use in darker dark areas I suggest L3 unfilmed gen 3 for it's unmatched sensitivity and low light capabilities, gives the end user about a 20% edge in said darker dark conditions VS Elbit tubes, typically giving the image a cleaner and sharper view, typically gives off a white or more grey hue. 

Lead time typically within 8 days.