# Leptons

### **What is a Lepton?**

[Lepton NFTs are rare limited NFTs that come with additional functionality](https://wallet.charged.fi/leptons): giving its owner additional rewards earned on top of the IONX base reward program. There are 6 different Leptons to choose from that vary in their multiplier effects and can be combined to increase their total multiplier effect. Every deposited Lepton must be of a different type for it to be accounted for in the program. If 6 different Leptons are deposited, the base reward will be multiplied by 10x. If fewer than 6 have been deposited, the multiple becomes the total of the top 4 Leptons divided by 2. Each Lepton is a standard ERC-721, non-custodial NFT that is able to be resold on popular secondary markets like OpenSea.

**Stacking Leptons**:

You can stack up to 6 Leptons in a single NFT but they must be a different tier. For multiple Leptons, add the top 4 multipliers and divide by 2. If you own all 6 Leptons, you get 10x Rewards. 

**Calculate Rewards**

You can calculate the expected reward-rate here - <https://docs.google.com/spreadsheets/d/1MAvih7vOGBrEsgABwQkZjELz0p3B-yNrhgxHxeJV3sw/edit#gid=0><br>

The variables in calculation are

* Base multiplier: defines how we match interest to IONX reward, 100% means that for every 1 USDC, DAI, or SUSD of interest, it will be matched with 1 IONX.&#x20;
* Lepton multiplier: This can vary depending on the deposited assets.
* Interest rate: The expected AAVE overall interest&#x20;

Read all about them here: <https://medium.com/charged-particles/lepton-v2-stackable-yield-multiplier-nfts-5a05a30a9585>

#### **How much are Leptons?**

There are 6 different tiers of Leptons available, starting at 0.3 ETH with a 1.1x multiplier and going up to 21 ETH for a 5.1x multiplier.

#### How many Lepton NFTs can I buy at once?

Limit of 25 Leptons per purchase. Per Tier.

#### How do I transfer a Lepton (or other NFT) to another wallet?

We have a transfer button located on the NFT page in the NFT Wallet Viewer - [wallet.charged.fi](https://wallet.charged.fi/)

#### What about Lepton v1?&#x20;

Lepton v1 has been discontinued. If you had purchased a Lepton v1, you were airdropped a Lepton v2. You can read all about the upgrades here: <https://medium.com/charged-particles/lepton-v2-stackable-yield-multiplier-nfts-5a05a30a9585>

This is the NEW contract address: <https://etherscan.io/address/0x3Cd2410EAa9c2dCE50aF6CCAb72Dc93879a09c1F&#x20>;

*This is the OLD contract address, these Lepton do not have yield-multiplying properties and are not used on the platform in any way:* [*https://etherscan.io/address/0x76a5df1c6f53a4b80c8c8177edf52fbbc368e825*](https://etherscan.io/address/0x76a5df1c6f53a4b80c8c8177edf52fbbc368e825)