Embodiments of the present invention include systems, methods, and non-transitory computer program products for information exchange using color space encoded images. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. In order to increase an amount of heat energy radiated and discharged from the radiation parts, each of the radiation parts has a large surface area when compared with that of parts other than the radiation parts in the electric wires. The controller determines, based on the one or more signals, whether the industrial machine is operating in an over-loaded condition by comparing a suspended load to a suspended load threshold value. When disengaged from the top and bottom, the cage is foldable out into a fence configuration by disconnecting two ends of the cage.