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The lamp tube of new way, that can help difficulty when ordinary lamp tube changes, is proposed. Woman, the old and the infirm can change easily and use conveniently by easy separation and easy combination when the lamp tube changes.
It can also prevent dangerousness of damage.
Chung-Ang University.
Ahn Sung-Si, Gyung Gi-Do, South Korea
Chung-Ang University.
Ahn Sung-Si, Gyung Gi-Do, South Korea
Chung-Ang University
Ahn Sung-Si, Gyung Gi-Do, South Korea