> For the complete documentation index, see [llms.txt](https://docs.deri.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.deri.io/trading/deri-lite/power-perpetuals.md).
# Power Perpetuals
**Open a Position**
**Step 1:** Switch to Lite version, enter the Lite interface.
**Step 2:** Click the downward arrow,on the popped-up "Select Market" panel, choose "Powers" Then, select a symbol you want to trade. Here taking the mBTC^2 symbol as an example.
**Step 3:** Choose if you wish to long or short your position on the “Buy/Sell” section (Taking long as an example here).\
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Then, select a base token to buy assets: Click on the downward arrow, choose a base token with a balance in your wallet (using USDC as an example in this case).
**Step 4:** Set the amount in mBTC^2 you’d like to buy (Or you can directly enter the notional amount in USDC, it will be converted to the symbol equivalent). Adjust the leverage through buttons/slider, the leverage can go up to 10x. After setting, click on "Long mBTC^2".\
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On the popped-up wallet interface, click on "Confirm." Open the position successfully now.
Information of the position(s) you have opened up will be included in your “Positions” tab.
You can add / remove the position’s collateral.\
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**Add collateral**
Click ‘+’ button, choose ‘Add’ section, set the notional amount in USDC you’d like to add through manually entering or selecting a percentage of your wallet balance. Then, click ‘Add Collateral’.
After confirming in the wallet, your collateral adding is done. Check the updated number in the ‘Collateral’ column.
**Remove collateral** \
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Choose ‘Remove’, set the notional amount in USDC you’d like to remove through manually entering or selecting a percentage of the available balance. Then, click ‘Remove Collateral’.
After confirming in the wallet, your collateral removal is done. Check the updated number in the ‘Collateral’ column.
**Close a Position**\
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**Step 1:** Click “Close” in the position tab. Set the position size you want to close through manually entering a specific size or selecting a percentage of the current position size. (100% means complete close) Then, click ‘Close’.
**Step 2:** After confirming in the wallet, close the position successfully now. You can view your detailed trading history in the “History” section.
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