LED retrofit lighting apparatus for a light fixture

1. A light-emitting diode retrofit lighting apparatus for an existing light fixture comprising more than one lamp holders, the apparatus comprising:

a base portion to be mounted to the light fixture;

a light-emitting diode mounting part connected with the base portion and including LED lighting sources mounted thereon;

an adjustment portion secured to the base portion and configured to adjust the apparatus in a vertical direction;

at least one sliding mechanism mounted on and configured to slide along the adjustment portion to adjust the apparatus in a horizontal direction relative to the more than one lamp holders;

the at least one sliding mechanism is received within the adjustment portion, and configured to perform width adjustment relative to the more than one lamp holders;

the at least one sliding mechanism including:

a plurality of rib portions configured to engage with teeth portions of the adjustment portion;

a plurality of locking hook portions to overlap and hook to side surfaces of the adjustment portion to secure the at least one sliding mechanism to the adjustment portion; and

a spring part configured to be compressed and uncompressed to adjust the at least one sliding mechanism horizontally along the teeth portions of the adjustment portion based on a compression state thereof.

2. The light-emitting diode retrofit lighting apparatus of claim 1 , wherein the base portion comprises:

a mounting portion configured to mount the adjustment portion thereon;

a holding mechanism configured to receive and fixedly secure the adjustment portion thereon; and

a handle comprising a plurality of hook portions and configured to perform height adjustment in the vertical direction.

3. The light-emitting diode retrofit lighting apparatus of claim 2 , wherein the adjustment portion is an elongated part comprises:

a plurality of the teeth portions on opposite side ends; and

a plurality of slots configured to receive the hook portions of the base portion via the handle, for performing the height adjustment.

4. The light-emitting diode retrofit lighting apparatus of claim 1 , further comprising:

at least one rotating mounting part corresponding to the at least one sliding mechanism, and configured to be rotatably mounted to the existing lamp holder.

5. The light-emitting diode retrofit lighting apparatus of claim 4 , wherein the at least one rotating mounting part comprises a plurality of pins configured to be inserted into the existing lamp holder.

6. The light-emitting diode retrofit lighting apparatus of claim 4 , wherein the apparatus is connected with the existing light fixture by a connector on a top surface of the base portion.

7. The light-emitting diode retrofit lighting apparatus of claim 4 , further comprising a lens attachable to a lower surface of the base portion and configured to reflect light from the light-emitting diode light source to be mounted within the apparatus.

8. The light-emitting diode retrofit lighting apparatus of claim 4 , wherein the locking hook portions, the spring part and the rib portions are locked into place along the adjustment portion by engaging the rib portions with the teeth portions to maintain a fixed position of the sliding mechanism on the adjustment portion.

9. The light-emitting diode retrofit lighting apparatus of claim 8 , wherein the spring part is in an uncompressed state to facilitate locking of the sliding mechanism onto the adjustment portion.

10. The light-emitting diode retrofit lighting apparatus of claim 8 , wherein the spring part is compressed by pushing the sliding mechanism in a downward direction such that the sliding mechanism is released and the rib portions are disengaged to thereby allow the sliding mechanism to freely slide along with adjustment portion.

11. The light-emitting diode retrofit lighting apparatus of claim 1 , wherein an electrical connection of the existing light fixture is used to supply electrical power to the light-emitting diode light sources.

12. The light-emitting diode retrofit lighting apparatus of claim 1 , wherein an external electrical connection from the existing light fixture is used to supply electrical power to the light-emitting diode light source.

13. The light-emitting diode retrofit lighting apparatus of claim 5 , wherein the pins are inserted directly into the lamp holders, and the rotating part is configured to be rotated to lock the pins into place.

14. The light-emitting diode retrofit lighting apparatus of claim 7 , further comprising a cover configured to cover the light-emitting diode retrofit lighting apparatus, and to attach to the light-emitting diode mounting part and the lens to complete the outer appearance of the light-emitting diode retrofit lighting apparatus.

15. A method for attaching a light-emitting diode retrofit lighting apparatus to an existing light fixture comprising more than one lamp holders, method comprising:

mounting a base portion to the light fixture;

connecting a light-emitting diode mounting part with the base portion, the mounting part including one or more light-emitting diode lighting sources mounted thereon;

securing an adjustment portion to the base portion, to adjust the apparatus in a vertical direction;

mounting at least one sliding mechanism to slide along the adjustment portion for adjusting the light-emitting diode retrofit lighting apparatus in a horizontal direction relative to the more than one lamp holders

receiving the at least one sliding mechanism within the adjustment portion to perform width adjustment relative to the more than one lamp holders;

engaging a plurality of rib portions of the at least one sliding mechanism with teeth portions of the adjustment portion;

securing the at least one sliding mechanism to the adjustment portion by overlapping and hooking a plurality of locking hook portions of the at least one sliding mechanism to side surfaces of the adjustment portion; and

adjusting the at least one sliding mechanism horizontally along the teeth portions of the adjustment portion by compressing and uncompressing a spring part of the at least one sliding mechanism.

16. The method of claim 15 , further comprising:

performing, via a handle, height adjustment in the vertical direction.

17. The method of claim 16 , further comprising:

receiving hook portions of the base portion within a plurality of slots of the adjustment portion to perform the height adjustment.

18. A light-emitting diode retrofit lighting apparatus for an existing light fixture comprising more than one lamp holders, the apparatus comprising:

a base portion to be mounted to the light fixture;

a light-emitting diode mounting part connected with the base portion and including LED lighting sources mounted thereon;

an adjustment portion secured to the base portion and configured to adjust the apparatus in a vertical direction; and

at least one sliding mechanism mounted on and configured to slide along the adjustment portion to adjust the apparatus in a horizontal direction;

wherein:

the base portion comprises:

a mounting portion configured to mount the adjustment portion thereon;

a holding mechanism configured to receive and fixedly secure the adjustment portion thereon; and

a handle comprising a plurality of hook portions and configured to perform height adjustment in the vertical direction; and

wherein:

the adjustment portion is an elongated part comprising:

a plurality of teeth portions on opposite side ends; and

a plurality of slots configured to receive the hook portions of the base portion via the handle, for performing the height adjustment; and

wherein:

the at least one sliding mechanism is received within the adjustment portion, and configured to perform width adjustment relative to the more than one lamp holders, wherein the at least one sliding mechanism comprises:

a plurality of rib portions configured to engage with the teeth portions of the adjustment portion;

a plurality of locking hook portions to overlap and hook to side surfaces of the adjustment portion to secure the at least one sliding mechanism to the adjustment portion; and

a spring part configured to be compressed and uncompressed to adjust the at least one sliding mechanism horizontally along the teeth portions of the adjustment portion based on a compression state thereof.