Waterproof and dustproof downlight

A waterproof downlight comprising:

• a housing having
• a cavity having a top opening and a bottom opening;
• and
• a partition board separate from the housing and inserted into the housing and mounted horizontally in the cavity;
• a top cover, mounted in the top opening of the cavity of the housing;
• an upper waterproof casing, being hollow, is mounted on a top surface of the partition board and having an upper chamber defined in a bottom of the upper waterproof casing;
• a lower waterproof casing being hollow, being mounted a bottom surface of the partition board and having
• a lower chamber defined in a top of the lower waterproof casing;
• a lower waterproof O-ring mounted on an annular periphery of a top of the lower waterproof casing, hermetically contacting a bottom surface of the partition board and the annular periphery of the top of the lower waterproof casing, and sealing the lower chamber;
• and
• a lower through hole defined in a bottom of the lower waterproof casing and communicating with the lower chamber;
• a power supplying circuit element mounted in the upper chamber of the upper waterproof casing;
• and
• a lighting assembly mounted securely on the bottom surface of the partition board, mounted in the lower chamber of the lower waterproof casing, and electrically connected to the power supplying circuit element.

A waterproof downlight comprising:

• a housing having
• a cavity having a top opening and a bottom opening;
• and
• a partition board separate from the housing and inserted into the housing and mounted horizontally in the cavity;
• a top cover, mounted in the top opening of the cavity of the housing;
• an upper waterproof casing, being hollow, being mounted on a top surface of the partition board and having
• an upper chamber defined in a bottom of the upper waterproof casing;
• and
• an upper waterproof O-ring mounted on an annular periphery of the upper waterproof casing, hermetically contacting the top surface of the partition board and the annular periphery of the bottom of the upper waterproof casing, and sealing the upper chamber;
• a lower waterproof casing being hollow, being mounted a bottom surface of the partition board and having
• a lower chamber defined in a top of the lower waterproof casing;
• and
• a lower through hole defined in a bottom of the lower waterproof casing and communicating with the lower chamber;
• a power supplying circuit element mounted in the upper chamber of the upper waterproof casing;
• and
• a lighting assembly mounted securely on the bottom surface of the partition board, mounted in the lower chamber of the lower waterproof casing, and electrically connected to the power supplying circuit element.