# Mk1 to Mk2 variable names

The [Light Tunnel](https://docs.causalchamber.ai/the-chambers/light-tunnel-mk2) and [Wind Tunnel](https://docs.causalchamber.ai/the-chambers/wind-tunnel-mk2) available through the [Remote Lab](https://docs.causalchamber.ai/remote-lab/quickstart) correspond to the new models (Mk2) of these chambers. They offer more variables than the original Mk1 prototypes used to collect many datasets in the open-source [dataset repository](https://github.com/juangamella/causal-chamber).

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See the [Original prototypes](https://docs.causalchamber.ai/the-chambers/original-prototypes) section for a mapping between the old and new variables.
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