Abstract: Current tracing pad solutions often present several problems which may only operate if the device was plugged in all the time from the source of electricity. Traditional light boxes are bulky and require a constant power source, limiting portability and convenience. A conventional transparency is removably mounted in an opening in front of a box containing a translucent shade, which is mounted to pivot about its upper edge toward and away from the transparency, and to closed and open positions, respectively. A first lamp adjacent the lower edge of the shade illuminates the transparency when the shade is in its open position, and a second lamp rearward of the shade may be energized to superimpose an image of the shade onto the transparency, when the shade is closed (William A. Heindl, Jr., 1970) [1]. This study addresses the gap by developing an LED tracing pad mounted to a removable case and adjustable stand, integrated with a 235mm x 350mm solar panel compartment and a partitioned for drawing instruments, offering artists a portable, sustainable, and user comfort device for detailed tracing and design projects. The device allows LED tracing pad to use rechargeable that is generated by booth solar and alternating current (AC) in charging processes.

The LED tracing pad with a rechargeable module supplied with power source from both solar and alternating current (AC) would be a versatile tool for drafting students, architecture students, artists, illustrators and designers in tracing designs, drawings or patterns in a maximum size of 345mm x 475mm. It combines the benefits of a traditional tracing pad with the added convenience of portability and sustainable charging options which the device doesn’t need to be plugged in all the time. A rigorous evaluation, involving 50 experts and end-users, assessed the device's performance using a five-point Likert scale. These evaluators were selected through purposive sampling based on their expertise. The testing and evaluation took place at Capiz State University-Main Campus, while the development work was done at the researcher’s residence.

Testing revealed that the rechargeable module using 5V rechargeable battery has sufficient capacity to provide several hours of continuous use for 4 hours with a charging indicator to show charging status and battery level. The device's aesthetic, industrial-grade design prioritizes both user-friendliness and safety. Overall, the device received a "Very Acceptable" rating, demonstrating its effectiveness of its design, technical features, operating performance and composition that integrates a rechargeable module with safe wiring, ensuring continuous, sustainable power for use.

Keywords: LED, Rechargeable Module and Tracing Pad

Downloads: | DOI: 10.17148/IARJSET.2025.121201