The light was painted in black and white checkers until the 80's/90's when it was repainted in green.
Before the adoption of IALA A in the 1980's, HK followed the League of Nations Uniform Buoyage System (also used in the UK). Starboard markers were black or black and white checkers (black and yellow for secondary channels). Port markers were red or red and white checkers (red and yellow for secondary channels).
The lantern on the beacon is an electric lantern, Pharos Marine's FA-250
https://www1.photostore.gov.hk/photostore/view_photo.xhtml?photoId=8468-8
