Dynamic light gradient controller - automatically generates light gradients between multiple bulbs

double-wb · June 3, 2026, 4:04pm

I created this blueprint to solve a specific problem I had with my 6-bulb IKEA VIDJA floor lamp. I wanted to display smooth gradients from top to bottom, but manually setting the colour or temperature for the middle bulbs was a losing battle.

This blueprint acts as a controller that watches your defined "Top" and "Bottom" bulbs. When they change, it automatically calculates the intermediate values and applies them to the middle bulbs to create a seamless gradient. This was created with the assistance of AI.

Key Features:

Brightness and colour gradients: Creates a gradient for colours and brightness.
Dynamic Light Quantity: Supports anywhere from 3 to 10 individual bulbs.
RGB and Colour Temperature Aware: Automatically detects if you are using colours (RGB/HS) or whites (colour temperature/mireds) and sets the correct mode for the intermediate bulbs.
Configurable Variables:
- Initial Warm-up Delay: Time to wait before reading trigger states, useful for simultaneous scene triggers, voice assistants etc.
- Bulb Transition Time: Fade time for the bulbs.
- Cascade Delay: Stagger time between each middle bulb updating.
- Anti-Storm Cooldown: Prevents the automation from re-triggering too quickly.
Scenarios covered:
- Top on, bottom off - Brightness gradient from top using only 1 colour/temp.
- Top off, bottom on - Brightness gradient from bottom using only 1 colour/temp.
- Both colour - Gradient using RGB and brightness.
- Both temp - Gradient will use mireds and brightness.
- One colour, One temp - Gradient will use RGB and brightness.
- Both off - All lights off.

Code & Installation:

You can review the code or import the blueprint from my GitHub repository here:

github.com/double-wb/Home-Assistant-BPs

Light-Gradient-Controller.yaml

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blueprint:
  name: "Light Gradient Controller (from 3 to 10 Bulbs)"
  description: "Creates directional gradients across multiple bulbs. Last updated 26.06.03"
  domain: automation
  input:
    warmup_delay:
      name: Initial Warm-up Delay
      description: "How long (in seconds) to wait before reading the trigger bulbs' states. Allows attributes to settle when triggered simultaneously by scenes/voice."
      default: 0.25
      selector:
        number:
          min: 0
          max: 2
          step: 0.05
          unit_of_measurement: "s"
          mode: slider
    transition_time:
      name: Bulb Transition Time
      description: "How long (in seconds) the bulbs locally fade their color/brightness."
      default: 2

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Feedback and improvements are welcome. This is my first blueprint so go easy on me