sciencetoolbarmini generator 230 V lighting bulbs 3 w - 75 W , using a single neodymium sphere 19 mm - 30 mm , 1 or 2 coils iron - less 40 ohms each , pot metal case, 3,7 V Dc motor, 1 - 2 batteries 3,7 V.
2. small generator lighting 11 W Hg bulb 230 V
3. electric generator lighting 28 w bulb 230 V
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