LED lighting methods and apparatus
Apparatus and methods for lighting. The apparatus may include an LED light source. The light source may be disposed in housing. The apparatus may include a circuit. The circuit may be configured to cause the LED light source to emit light at: a first intensity; and a second intensity that is different from the first intensity. The apparatus may include a mechanical power state selector. A user may use the power state selector to select between LED light sources that are arranged to illuminate in different directions. The apparatus may include a CCT state selector. A user may use the CCT state selector to select a CCT for one or more LED light sources. The CCT may be produced by combining light from one or more LEDs of different CCTs.
1. Apparatus comprising:
a first LED light source that is in a housing and that is configured to emit light in a first direction;
a second LED light source that is in the housing and that is configured to emit light in a second direction that is different from the first direction;
a circuit that is:
in the housing; and
configured to cause each of the first LED light source and the second LED light source to emit light at:
a first intensity; and
a second intensity that is different from the first intensity; and
an on-board mechanical intensity-selector;
wherein:
the first intensity and the second intensity are selectable via the on-board mechanical intensity-selector; and
the circuit is configured to change, responsive to a manual adjustment of the on-board mechanical intensity-selector, a magnitude of an electrical current passing through the first LED light source and the second LED light source.
2. The apparatus of claim 1 wherein the first direction is antiparallel the second direction.
3. The apparatus of claim 1 wherein the intensity-selector is configured to select a correlated color temperature (“CCT”) for the first LED light source.
4. The apparatus of claim 3 further comprising
an on-board ON/OFF selector that is configured to:
in a first position, power-on only the first LED light source;
in a second position, power-on only the second LED light source; and
in a third position, power-on both the first LED light source and the second LED light source.
5. The apparatus of claim 1 further comprising
an on-board ON/OFF selector that is configured to:
in a first position, power-on only the first LED light source;
in a second position, power-on only the second LED light source; and
in a third position, power-on both the first LED light source and the second LED light source.
6. The apparatus of claim 1 further comprising an on-board CCT-selector that is configured to select a CCT for:
the first LED light source; and
the second LED light source.
7. The apparatus of claim 1 further comprising:
a first accessory lens holder that is configured to hold an accessory lens in front of the first LED light source; and
a second accessory lens holder that is configured to hold an accessory lens in front of the second LED light source.
8. The apparatus of claim 1 further comprising:
an optics chamber; and
a control chamber;
wherein:
the optics chamber encloses the first LED light source; and
the control chamber encloses the circuit configured to be adjustable via the intensity-selector.
9. Apparatus comprising:
a first LED light source that is in a housing and that is configured to emit light in a first direction;
a second LED light source that is in the housing and that is configured to emit light in a second direction that is different from the first direction;
a circuit that is:
in the housing; and
configured to cause each of the first and second LED light sources to emit light at:
a first correlated color temperature (“CCT”); and
a second CCT that is different from the first CCT; and
an on-board mechanical CCT-selector that is configured to select a CCT for:
the first LED light source; and
the second LED light source.
10. The apparatus of claim 9 further comprising:
a first optics chamber; and
a control chamber;
wherein:
the first optics chamber encloses the first LED light source; and
the control chamber encloses the circuit configured to be adjustable via the CCT selector.
11. The apparatus of claim 10 further comprising a second optics chamber that encloses the second LED light source.
12. The apparatus of claim 11 further comprising a first removable end cap that covers one end of the first optics chamber.
13. The apparatus of claim 12 further comprising a second removable end cap that covers one end of the second optics chamber.
14. The apparatus of claim 9 wherein the apparatus further includes a mounting face that is configured to engage a fastener.
15. The apparatus of claim 14 wherein the mounting face is configured to receive a power wire.
16. The apparatus of claim 9 wherein:
the first LED light source and the second LED light source define an axis;
the CCT-selector is configured to engage a switch in a control chamber; and
the control chamber, when the apparatus is mounted to a structure, intervenes between the axis and the structure.
17. The apparatus of claim 9 further comprising:
a first beam-adjusting lens that is repositionable from a first position in front of the first LED light source to a second position in front of the first LED light source; and
a second beam-adjusting lens that is repositionable from a third position in front of the second LED light source to a fourth position in front of the second LED light source.
18. The apparatus of claim 9 wherein, in operation a first beam is emitted from the first LED light source and a second beam is emitted from the second LED light source:
the first beam has a selectable first beam angle;
the second beam has a selectable second beam angle; and
selection of the second beam angle does not depend on the first beam angle.
19. The apparatus of claim 18 wherein the first beam angle and the second beam angle are above 35 degrees.
20. The apparatus of claim 9 wherein the first direction is antiparallel the second direction.
21. The apparatus of claim 9 further comprising an on-board ON/OFF selector that is configured to power on and power off the first LED light source and the second LED light source.
22. The apparatus of claim 9 further comprising an on-board ON/OFF selector that is configured to:
in a first position, power-on only the first LED light source;
in a second position, power-on only the second LED light source; and
in a third position, power-on both the first LED light source and the second LED light source.
23. The apparatus of claim 22 further comprising:
a first beam-adjusting lens that is repositionable from a first position in front of the first LED light source to a second position in front of the first LED light source; and
a second beam-adjusting lens that is repositionable from a third position in front of the second LED light source to a fourth position in front of the second LED light source.
24. The apparatus of claim 23 further comprising:
a first removable end cap that covers one end of a first optics chamber; and
a second removable end cap that covers one end of a second optics chamber.
25. The apparatus of claim 23 wherein each of the first LED light source and the second LED light source includes a COB LED.
26. The apparatus of claim 22 further comprising:
a mechanical intensity-selector;
wherein the first LED light source and the second LED light source emit light at:
a first intensity; and
a second intensity that is different from the first intensity; and
the first intensity and the second intensity are selectable via the mechanical intensity-selector.
27. The apparatus of claim 26 wherein the mechanical intensity-selector is on-board.
28. The apparatus of claim 26 wherein the CCT selector may provide one or more intermediate CCT values between the first CCT and the second CCT.
29. The apparatus of claim 22 wherein:
the CCT selector includes a position indicator; and
the ON/OFF selector includes a position indicator.
30. The apparatus of claim 9 wherein each of the first LED light source and the second LED light source includes a chip-on-board (“COB”) LED.