| 摘要 |
A street lamp includes a lamp holder; a light generating unit, a brightness measuring unit and a display unit. The light generating unit is arranged on the lamp holder for emitting light. The brightness measuring unit is arranged on the lamp holder and exposed to light radiation of the light generating unit. The brightness measuring unit is configured for measuring a brightness of the light generating unit. The display unit is arranged on the lamp holder for displaying information associated with the brightness measured by the brightness measuring unit
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