Light device with enhanced flow rate and cooling efficiency and reduced noise and a cooling unit thereof

A light device, comprising:

• a housing with an assembly opening and an electrical base arranged at two ends thereof;
• a cooling unit received in the housing via the assembly opening and having a heat dissipating seat, a driving member and a fan wheel, wherein the heat dissipating seat has a lateral wall coupled with the housing, an inner air channel formed in the lateral wall, a base portion arranged in the inner air channel, and at least one through hole penetrating the base portion and communicating with the inner air channel, the driving member is mounted on the base portion and electrically connects with the electrical base, and the fan wheel is rotatably coupled with the driving member;
• and
• a light emitting unit coupled with the heat dissipating seat and electrically connecting with the electrical base;
• wherein an outer air channel is formed between the lateral wall of the heat dissipating seat and the housing.