Školák demonstruje energeticky úsporné žárovky, které drží v rukou, když sedí u stolu - Stock záběry a video

Portrait child in red clothes explores, examines in his hands an energy-saving light bulb

A boy in red clothes sits at a school at a table in the classroom, holds a light bulb in his hands, shakes it

Portrait a boy sits at a table, holds light bulbs in one hand, shows like in another hand

A child in red clothes at a table at home examines, studies energy-saving light bulbs

A child in red clothes sitting at a table examines light bulbs, is engaged in home education

Portrait a boy holds a light bulb in his hands, studies it, considers an energy-saving light bulb

Portrait child in red clothes explores, examines in his hands an energy-saving light bulb

A boy in red clothes sits at a school at a table in the classroom, holds a light bulb in his hands, shakes it

Portrait a boy sits at a table, holds light bulbs in one hand, shows like in another hand

A child in red clothes at a table at home examines, studies energy-saving light bulbs

A child in red clothes sitting at a table examines light bulbs, is engaged in home education

Portrait a boy holds a light bulb in his hands, studies it, considers an energy-saving light bulb