JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
Online ISSN : 1349-838X
Print ISSN : 0019-2341
ISSN-L : 0019-2341
Development of the energy-saving type LED channel Letter panel using a solar cell and battery
Y. UchiyamaiY. UchidaK. KobashiT. TaguchiM. Yamada
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2001 Volume 85 Issue Appendix Pages 245

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© The Illuminating Engineering Institute of Japan
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