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Under situation poor night sight line, a warning can be more illuminating.
Let passers, the elderly, people with reduced mobility
More than a self-protection in the cart turns, dead ends sight to see the warning light illuminated
Umbrella push downward pressure from above the button will turn on lights and open the valve assembly
On rainy days, the water will not mess drip, watering can be collected
Asia University
Taichung, Taiwan
Tzu-Ying Wu,
Asia University