> For the complete documentation index, see [llms.txt](https://docs.canto.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.canto.io/technical-reference/liquidity-coordinator/gaugecontroller.md).
# GaugeController
Lockers vote on gauges using the [`GaugeController`](https://oklink.com/canto/address/0x46970b45d114420A71A3d76AA6c398173118C2b8) contract. Gauges represent LP tokens on the Canto DEX and/or cNOTE deposits on third-party lending markets.
Voting takes place during one week epochs.
### Voting
To vote for a gauge, call the `vote_for_gauge_weights(address _gauge_addr, uint256 _user_weight)` method. The `_gauge_addr` parameter is the address of a whitelisted gauge and `_user_weight` is the voting weight in bps (basis points).
**ethers.js**
```
await GaugeController.vote_for_gauge_weights(0x..., 10000) // 10,000 bps = 100%
```
**foundry**
```
cast send --ledger 0x... "vote_for_gauge_weights(address,uint256)" 0x... 10000
```
### Removing/Changing Votes
To remove or change votes cast in the current epoch, call the `vote_for_gauge_weights(address _gauge_addr, uint256 _user_weight)` method specifying a new weight (e.g. 0 bps).
---
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