The phrase "alternating light" is correct and usable in written English.
It can be used to describe a light source that changes or switches between different states, such as on and off, or different colors.
Example: "The traffic signal displayed an alternating light pattern, switching from red to green every few seconds."
Alternatives: "flashing light" or "pulsating light".
The water temperature in their hatcheries was alternately raised and lowered, which made the fish develop alternating light and dark bands of cartilage.
Its claws have small red spots and its legs sport alternating light and dark bands.
These beams form a pair of alternating light fields for stereo 3-D view.
The alternating light and dark stripes of the thorax and elytra, or hardened forewings, of the weevil mirror precisely those of a sarcophagid.
The result was a shadow of alternating light and dark bands -- a phenomenon that could be explained if the two beams were interacting like waves.
The oscillation creates a fringe pattern of alternating light and dark bands that is modulated by the diffraction pattern from each slit.
In the insects placed on alternating light-dark cycles, the activity fluctuated with the changing light conditions.
We found that when kept in 24 hour alternating light-dark conditions (24hr LD cycles), mice deficient in Bmal1 (Bmal1+/−), Cry1 and Cry2 (Cry1−/−;Cry2−/−), Per1 and Per2 (Per1−/−;Per2m/m) or Per2 alone (Per2−/−) were all cancer-prone.
Therefore, we combined and analyzed data from two independent microarray experiments, previously performed under alternating light-dark and continuous light conditions in Cyanothece sp. ATCC 51142, and sought to classify light responsive and circadian controlled genes.
Male C57B/6J mice and db/db mice were purchased directly from the Jackson Laboratory (Bar Harbor, ME) and housed a 12-h alternating light-dark, temperature-controlled, specific pathogen-free barrier facility prior to and throughout experimentation.
The cages were placed in an air-conditioned room (25 ± 1°C), with 40 dBA and a 12-hour alternating light-dark cycle (6:00 am to 6 00 pm).
