A férfi kezei fénycső és számológép elszigetelt fehér, energia hatékonyság fogalma kezében levágott megtekintése - Stock fotó és kép

Cropped view of male hands holding led and fluorescent lamps next to calculator in hands isolated on white, energy efficiency concept

Cropped view of male hands holding led lamp and calculator in hands isolated on white, energy efficiency concept

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Male hands with calculator on white background

Cropped view of fluorescent lamp and calculator in male hands, energy efficiency concept

Cropped view of woman holding calculator near lamps on white background, energy efficiency concept

Cropped view of woman holding led lamp and calculator in hands isolated on yellow, energy efficiency concept

Cropped image man rejecting pack of cigarettes from woman isolated on white

Cropped view of businessman in suit using calculator near fluorescent lamps on white background, energy efficiency concept

Cropped view of woman using calculator near lamps on white background, energy efficiency concept

Cropped image man making hiv test with syringe isolated on white, world aids day concept

Cropped image of girl measuring level of glucose in blood with glucometer isolated on white, diabetes concept

Top view of blank notebook with various studying supplies and waffle cone on yellow