TZT 10pcs Student Electrical Experimental Physics Class Used 0.3A 0.5A 1.5V 2.5V 3.8V 6V Small Incandescent Bulbs

TZT 10pcs Student Electrical Experimental Physics Class Used 0.3A 0.5A 1.5V 2.5V 3.8V 6V Small Incandescent Bulbs

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