Light including a heat sink and LEDs coupled to the heat sink

A light comprising:

• a housing;
• a heat sink disposed within the housing;
• a plurality of LEDs coupled to the heat sink and operable in response to a supply of power;
• a first power supply including two power tool battery packs selectively coupled to the housing;
• a second power supply arranged to receive AC power from an external source;
• and
• a power control circuit operable to detect the level of charge in each of the power tool battery packs and to deliver power to the LEDs sequentially from the battery packs beginning with the battery pack having the lowest state of charge, the power control circuit also operable to detect when one battery pack is drained and automatically reduce an intensity of the LEDs in response to the one battery pack being drained.

A light comprising:

• a housing defining a bottom end and a top end;
• a heat sink disposed within the housing and including a central body that defines both a central aperture and a plurality of external apertures, the central aperture extending along a central axis of the light and each of the external apertures extending along external axes that are parallel to and offset from the central axis;
• a plurality of arms coupled to the central body and extending outward from the central body, each of the arms including a light receiving surface and a plurality of fins that extend from the light receiving surface toward the central axis;
• a plurality of LEDs coupled to each of the light receiving surfaces;
• and a cooling air flow path extending from the bottom end of the housing through the heat sink aperture to direct cooling air from the bottom end of the housing to the top end of the housing.

A light comprising:

• a housing having a bottom, a top, and a central axis extending through the bottom and the top, the housing including an upper portion and a lower portion, the lower portion defining a battery port;
• a plurality of legs coupled to the lower portion of the housing;
• a heat sink extending upward from the lower portion of housing and defining a central aperture extending along the central axis, the heat sink including a plurality of light support surfaces arranged around a perimeter of the heat sink;
• a first plurality of LEDs coupled to the plurality of light support surfaces, the first plurality of LEDs arranged to emit light in a 360 degree pattern;
• a second plurality of LEDs supported on top of the heat sink, the second plurality of LEDs arranged to emit light upward in a direction substantially parallel to the central axis;
• a power input supported on the lower portion of the housing, the power input configured to connect to an external AC power source to power the first and second pluralities of LEDs;
• a power outlet supported on the lower portion of the housing, the power outlet configured to connect to another device to power the another device;
• a battery pack received in the battery port to power the first and second pluralities of LEDs;
• a charging circuit positioned within the housing and electrically coupled to the power input, the charging circuit operable to charge the battery pack;
• and
• a control panel supported on the lower portion of the housing, the control panel including a power button and a light intensity control, the light intensity control operable to increase or decrease intensities of the first and second pluralities of LEDs.