WEMOS D1 Mini 8x8 Addressable RGB LED Shield has 64 LEDs WS2812B-2020 from Worldsemi with a full-brightness current of 12mA for each of the 3 chips.

Do the math: 64 LEDs x 3 colors x 12mA = 2.3A. This is the maximum current consumption for white light at it's full brightness. The 256 programmable brightness levels allow to reduce the current to a fraction, and a typical use by displaying characters and numbers reduces the current again.

The module fits on WEMOS/LOLIN D1 Mini and most compatible modules (C3, S2 etc.). Please compare the pinout to make sure it will fit your IoT module.

The data pin used for the WEMOS D1 Mini 8x8 Addressable RGB LED Shield is D4.