What is the input datatype for color.lab2rgb in skimage?

I need to convert lab image to rgb. the input is float32, L is in range (0,100), A is (-128, 127), B is (-128,127).
but came across error: r: Images of type float must be between -1 and 1.
so what is the input datatype for color.lab2rgb in skimage? uint8 or any other data format?