LED Desklamp Conversion

by Hakimi in Circuits > LEDs

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LED Desklamp Conversion

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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

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The parts of desk lamp when dismantled. 

PCB Design and Stickering Techniques

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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

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After submerge the board into the ferric chloride acid, the remaining sticker are removed to reveal the copper trace

LED Board Preparation

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The board are stick with chrome sticker as reflector and and drilled for LED

LED Soldering

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The LED used here are piranha type from ebay. just about MYR 0.25 each.

LED Board Mounting and Finishing

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The completed LED board wire soldered and mounted using copper stand to the plastic body.

Power Supply

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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

Assembly

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All arm and lamp parts are assembled as original condition with proper wire dressing.

Circuit Board Set-up

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the power supply board and power transformer are screwed and mounted properly with proper arrangement for cover.

Testing and Finishing

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Excess silver shining sticker removed, and the lamp are tested
Ready to light...