LED Desklamp Conversion
While clearing my store, i found my old desk lamp, non working desk lamp. Despite repairing, i rather convert it to LED which is better brightness and energy efficient too.
Disassemble the Lamp
The parts of desk lamp when dismantled.
PCB Design and Stickering Techniques
The circuit and LED arrangement are made using PCB software.From the software using P-Cut machine the layout of circuit are made
Board Preparation
After submerge the board into the ferric chloride acid, the remaining sticker are removed to reveal the copper trace
LED Board Preparation
The board are stick with chrome sticker as reflector and and drilled for LED
LED Soldering
The LED used here are piranha type from ebay. just about MYR 0.25 each.
LED Board Mounting and Finishing
The completed LED board wire soldered and mounted using copper stand to the plastic body.
Power Supply
All components used as power supply for the LED lamp.
Just a simple LM7805 voltage regulator circuit.
after all components soldered and tested, the board and transformer are mounted back into the base.
*transformer used here are salvaged from old radio. Heavy transformer makes the lamp more stable
Just a simple LM7805 voltage regulator circuit.
after all components soldered and tested, the board and transformer are mounted back into the base.
*transformer used here are salvaged from old radio. Heavy transformer makes the lamp more stable
Assembly
All arm and lamp parts are assembled as original condition with proper wire dressing.
Circuit Board Set-up
the power supply board and power transformer are screwed and mounted properly with proper arrangement for cover.
Testing and Finishing
Excess silver shining sticker removed, and the lamp are tested
Ready to light...
Ready to light...