Underwater light system

An apparatus for use underwater by a user and for use with an air conduit, an electrical cable, and a light source, the apparatus comprising:

• a proximate housing portion and a distal housing portion, wherein at least a portion of at least one of the proximate housing portion and the distal housing portion is constructed of a material that is transparent,
• wherein the proximate and the distal housing portions are configured to be removably secured to one another and are sized for manual carrying by the user,
• wherein a housing interior is defined by at least one of the proximate housing portion and the distal housing portion when the proximate and distal housing portions are removably secured to one another,
• wherein one of the proximate housing portion and the distal housing defines a first port leading into the housing interior,
• wherein one of the proximate housing portion and the distal housing defines a second port leading into the housing interior,
• wherein the light source is disposed within the housing interior and configured so that light from the light source can travel through the transparent material when the proximate and distal housing portions are removably secured to one another;
• a first fitting coupled to the first port and configured for removable coupling to the air conduit, wherein the first fitting is further configured to permit the air to flow from the housing interior into the air conduit when the air conduit is coupled to the first fitting, and wherein the first fitting is further configured to inhibit the passage of the air and the water into the housing interior when the air conduit is not coupled to the first fitting;
• and
• a second fitting coupled to the second port and configured so that the light source can receive electrical power via the electrical cable and so that the electrical power can flow through the second fitting, wherein the second fitting is further configured so that the electrical cable can be electrically disconnected from and electrically connected to the light source, and wherein the second fitting is further configured to inhibit the passage of the water into the housing interior when the proximate and distal housing portions are removably secured to one another,
• wherein the proximate and distal housing portions are configured to hold a vacuum within the housing interior when the proximate and distal housing portions are removably secured to one another and disposed underwater and when the light source is electrically connected to the electrical cable.

An apparatus for use underwater by a user and for use with an air conduit and an electrical cable, the apparatus comprising:

• a housing defining a first port and a second port,
• electrical circuitry disposed within the housing;
• and
• a light source disposed within the housing and connected to the electrical circuitry,
• wherein at least a portion of the housing is constructed of a material that is transparent, wherein the housing is sized for manual carrying by the user, and wherein the light source is configured so that light can travel from the light source through the transparent material,
• wherein the housing defines a housing interior that is configured for fluid communication with the air conduit to permit air to flow from the housing interior through the first port and through the air conduit,
• wherein the light source is configured to receive electrical power via the electrical circuitry and the electrical cable so that the electrical power can flow through the second port when the housing is disposed underwater, and wherein at least a portion of the electrical cable is disposed external to the housing when the housing is disposed underwater, and
• wherein the housing is configured to hold a vacuum within the housing interior when the housing is disposed underwater and when the light source receives the electrical power via the electrical circuitry and the electrical cable.

A method comprising:

• attaching an air conduit to a housing defining a housing interior, wherein the housing interior is in fluid communication with the air conduit, wherein the housing defines a first port and is sized for manual carrying by a user, and wherein at least a portion of the housing is constructed of a transparent material;
• drawing air from the housing interior through the first port and through the air conduit so that a vacuum is created in the housing interior;
• submerging the housing underwater while the vacuum is in the housing interior;
• and
• applying electrical power from a power source through an electrical cable to a light source disposed within the housing interior so that light travels from the light source through the transparent material when the housing is disposed under the water, wherein the power source and at least a portion of the electrical cable are disposed outside of the housing.