| 摘要 |
PURPOSE: A road indication lamp is provided to by comprising a small wind power generation device on a column of the lamp and a weather vane for the device to obtain wind force to produce electric power and recharge the power for further using to light the lamp at night. CONSTITUTION: The indication lamp comprises a column body(1) having an attachment bar(1a) to mount the wind power generation device(2) inside and an air-permeable portion(1b), wherein the wind power generation device(2) comprises a power generation component(2a) with a rotational axis(2b) attached with the weather vane(2c); an activation circuit having a recharging component(3) and a detection sensor; and a display portion(4) having a lamp(4a) at the top side of the power generation device(2) to form a color lamp cover(4b). The indication lamp further comprises a main body with a supporting axis and is rotational by an axial tube at the column body(1).
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