> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt). # LED Brightness Adjuster Kit **Brand:** SparkFun **URL:** https://littlebirdelectronics.com.au/products/led-brightness-adjuster-kit — [Markdown](https://littlebirdelectronics.com.au/products/led-brightness-adjuster-kit.md) ## Pricing - **Price:** $9.20 - **Stock:** In stock at supplier - **Local warehouse:** 0 units - **Supplier (SparkFun):** 92 units - **SKU:** SF-SPX-21226 ## Description This handy kit gives you a simple way to compare and tune the brightness of your own LEDs, helping you avoid a project full of mismatched indicator lights. It was originally designed for side-by-side LED testing and is especially useful when choosing resistor values or learning how brightness changes with resistance.The PCB slots into the power rails of a breadboard, and you can stack up to 10 boards next to each other for comparing multiple LEDs. Each board provides five LED footprints for different SMD and through-hole sizes, although only one LED should be fitted to each board.Brightness is adjusted with a 10k linear potentiometer, with a 100 Ohm resistor in series to help protect the LED from burning out. Silkscreen markings around the potentiometer show approximate resistance, and the R+ and R- test points let you measure the exact resistance with a DMM.The kit includes the PCB, potentiometer, 100 Ohm resistor and breadboard headers. LEDs are not included, and the kit is not pre-assembled, so it is a good soldering practice project and a practical introduction to Ohm’s Law. This is a SparkX experimental product: it has been tested, but is supplied with no guarantees and live technical support is not available.Features:Breadboard-friendly: Designed to slot into the power rails of a breadboard.Stackable testing: Stack up to 10 boards next to each other for side-by-side LED comparison.Multiple LED footprints: Includes five footprints for different sizes of LEDs, including SMD and through-hole.Adjustable brightness: Uses a 10k linear potentiometer to adjust LED brightness.LED protection: Includes a 100 Ohm resistor in series to help protect the LED from burning out.Resistance markings: Silkscreen labels around the potentiometer indicate approximate resistance.DMM test points: R+ and R- test points allow measurement of exact resistance with a DMM.Kit format: Includes parts for assembly and is suitable for soldering practice.Bring your own LED: LEDs are not included so you can test your own parts.Specifications:Board mounting: Designed to slot into the power rails of a breadboard.Board stacking: Stack up to 10 boards next to each other.LED footprints: 5 different footprints for different sizes of LEDs (SMD and through-hole).LED population: Only one LED should be added to each board.Potentiometer: 10k linear potentiometer.Series resistor: 100 Ohm resistor.Test points: R+ and R-.Resistance measurement: Measure the exact resistance with a DMM.Included: PCB.Included: Potentiometer.Included: 100 Ohm resistor.Included: Headers for connecting into a breadboard.LEDs: NOT included with this kit.Assembly: The kit does not come pre-assembled. **Product Type:** LED Kit ## Images - [Image 1](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD5NACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--c1d12141dc7e394c02d3c32e4fb7f41b9d32e0c3/21226-_SPX-_2.jpg) - [Image 2](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD5dACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--7a123f46257c060ae71f17cc3cb7a5f27ba42691/21226-_SPX-_1.jpg) - [Image 3](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD5tACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--f05e39ed83ff07722f1f4da2eeba851959f040ed/21226-_SPX-_02_vertical.jpg) - [Image 4](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD59ACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--548f56c1235be21c39ddd492a1da8c982c741f47/21226-_SPX-_03_vertical.jpg) - [Image 5](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD6NACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--1b5bfe4c09c0db310dc443b01be926bdf19362c7/21226-_SPX_Action_Shot-_07.jpg) - [Image 6](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD7NACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--79f5bb40f087e515b29e81ab00d7b1840b7ac58f/21226-_SPX_Action_Shot-_08.jpg) - [Image 7](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD79ACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--9f6e866db68cce3e60c145f6aa94f513ee8bea5e/21226-_SPX_Action_Shot-_10.jpg) - [Image 8](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD8NACSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--869b2ff971b1e587072a644f3b1257ce8710ba37/LED_Brightness_Adjuster_Kit_-_1.jpg) --- ## Finding & Searching Products If a part listed here isn't quite what you need, you can search Little Bird Electronics' full catalogue: - **Search by keyword:** `GET https://littlebirdelectronics.com.au/products.md?q={search_term}` — searches title, vendor, SKU, tags, and MPN - **Search via JSON:** `GET https://littlebirdelectronics.com.au/products.json?q={search_term}` — structured JSON results - **Browse by collection:** `GET https://littlebirdelectronics.com.au/collections/{handle}.json` — products in a specific collection - **Filter in-stock only:** `GET https://littlebirdelectronics.com.au/products.md?q={term}&in_stock=1` - **Individual product detail:** `GET https://littlebirdelectronics.com.au/products/{handle}.md` — full specs, pricing, stock levels, variants Search supports multi-word queries (AND logic). Examples: - `https://littlebirdelectronics.com.au/products.md?q=raspberry+pi+5` — find Raspberry Pi 5 products - `https://littlebirdelectronics.com.au/products.md?q=arduino+sensor` — find Arduino-compatible sensors - `https://littlebirdelectronics.com.au/products.json?q=micro+bit` — find micro:bit products as JSON For the catalogue index and every other machine-readable endpoint we publish, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt). --- ## Contact Us **Little Bird Electronics Pty Ltd** ABN: 15 634 521 449 - **Phone:** 1300 240 817 - **Fax:** (02) 8319 2017 - **Email:** help@littlebird.com.au - **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia - **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia - **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays) ### Payment Methods - **Credit Card:** Via website checkout - **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624 - **Purchase Orders:** Email to team@littlebird.com.au (Net 30 for approved accounts) --- *Source: [LED Brightness Adjuster Kit](https://littlebirdelectronics.com.au/products/led-brightness-adjuster-kit) ([Markdown](https://littlebirdelectronics.com.au/products/led-brightness-adjuster-kit.md))*