หลอดไฟฟ้า, เบา, ไฟฟ้า, มืด, เรืองแสง, แสง, พลังงาน, กลางคืน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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