50.7 MB (6.0 MB compressed)
4912 x 3609 pixels
41.7 x 30.5 cm ⏐ 16.4 x 12.0 in (300dpi)
ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Light-activated switch, mounted on a circuit board. This switch is not activated manually, but is triggered by changes in the amount of light falling on the switch. This could be used in street lighting to switch lights on when it gets dark.
Model release not required. Property release not required.