They're fairly bright LEDs, we guess its something around 1000 mcd total.

They do diffuse nicely so you can see the color changing from any angle.

The forward voltage of the whole LED is about 3.4VDC but you can drive

them from a lithium coin cell like a CR2032 and they'll just be a little

dimmer. We don't have a datasheet showing the current draw over

different voltages and colors but at the 'rated' 3.4V its approx 20 mA and

at 3.0V its approx 10mA.

Comes in a pack of 10 LEDs! Although the LEDs are all the same shape

and have the same basic program, due to manufacturing variables they

will not sync together - they'll slowly drift in and out of sync.

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TECHNICAL DETAILS

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5mm diffused RGB LED

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Two leads

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Power with 3-3.4VDC



Current draw: 10-20mA depending on voltage and displayed color

                                              https://www.adafruit.com/product/679 12‐3‐18