3V COB LED – Rainbow

This is a mini COB (Chip On Board) LED light, in the shape of a rainbow – fun! This particular shape is extra-special as it includes five colours (sure, rainbows are meant to have seven colours, but we’re just going to brush over that…).

These special decorative LEDs have two tabs for connecting 3V and GND using crocodile clips, with a central hole on each tab to solder a wire permanently if required. If you look closely, there’s a small ‘-‘ on one of the tabs indicating the GND connection.

The LEDs draw around 100mA, so be sure to calculate the right resistor to protect both your COB LED and power source. From a 2xAA battery pack (roughly 3V) we used a 20Ω resistor just to keep a tab on things. 

They’re technically semi-flexible – but please don’t try to bend or twist these as they’ll almost definitely break, but they do have a rubber-dubbery grippy kind of quality to them.

The light is visible on both sides, but one side (the front) is slightly warmer and more diffused – but hey, use them however you like!

We have loads of different styles in the store – head on over to our COB LED section to feast your eyes on more shapes!

Features

• Rainbow shape COB LED
• Dimensions: 40x25mm
• 3V 100mA (usually works fine from 2.6V)
• Tabs for connecting with crocodile clips
• Can be soldered to wire via holes on tabs
• GND connection indicated with a small ‘-‘
• One per pack

Package Contents

• 1x Rainbow shape 3V COB LED