> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# ConditioningSetTimestepRange - ComfyUI Built-in Node Documentation

> Complete documentation for the ConditioningSetTimestepRange node in ComfyUI. Learn its inputs, outputs, parameters and usage.

This node is designed to adjust the temporal aspect of conditioning by setting a specific range of timesteps. It allows for the precise control over the start and end points of the conditioning process, enabling more targeted and efficient generation.

## Inputs

| Parameter      | Data Type    | Description                                                                                                                                                                                  |
| -------------- | ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `CONDITIONING` | CONDITIONING | The conditioning input represents the current state of the generation process, which this node modifies by setting a specific range of timesteps.                                            |
| `start`        | `FLOAT`      | The start parameter specifies the beginning of the timestep range as a percentage of the total generation process, allowing for fine-tuned control over when the conditioning effects begin. |
| `end`          | `FLOAT`      | The end parameter defines the endpoint of the timestep range as a percentage, enabling precise control over the duration and conclusion of the conditioning effects.                         |

## Outputs

| Parameter      | Data Type    | Description                                                                                                                    |
| -------------- | ------------ | ------------------------------------------------------------------------------------------------------------------------------ |
| `CONDITIONING` | CONDITIONING | The output is the modified conditioning with the specified timestep range applied, ready for further processing or generation. |