What is a normal range of reading of the Light Sensor using EV3 Raw Sensor block? EV3 software does not support the Light Sensor. It does support the Color Sensor.

The solution is to use the Raw Sensor Block.

What is "normal" for raw sensor block readings?

I'm getting readings between 450 and 700, with brighter readings at the lower end of the range.  I expected brighter to be the larger number.  Is there an expected range of values?

Is it because the software is running on an NXT brick?
My FLL team wrote a light sensor myblock that converts the raw value to a number between 0 and 100. They run it on the EV3 so they can use their existing NXT light sensors. It should work on the NXT brick as well. Here is the video they posted to explain how it works. 

http://youtu.be/I7Bqvk-uMLk