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This is a height-adjustable lamp . The users could adjust the height of the lamp according to their mind.with this feature,it reduces the occupation of space greatly and it is portable.Whats more,it may absorb solar energy for storage electricity in daytime,so it's environmentally friendly and energy saving.
ZHEJIANG UNIVERSITY
HangZhou, China
ZHEJIANG UNIVERSITY
HangZhou, China
Danhua Sun
Ziwei Weng