Changes

==FAQ==

'''Q1: Can it be install to my retroflag case?'''

A: No, the dimension is too big.

'''Q2: How many degrees can be decreased ?'''

A: We've tested it at room temperature 25℃, it can decreased about 40℃.

'''Q3: Does it easy to assemble?'''

A: Yes, it is very easy to install, we've provided an instruction for you.

'''Q4: How to install with Raspberry Pi 4 Model B'''

A:

# Fixed the copper stick to Raspberry Pi with M2.5 nuts.

# Connect the red wire to GPIO 5V pin and black wire to GPIO GND pin.

'''Q5: How to install with Raspberry Pi 3 Model B+'''

# Fixed the copper stick to Raspberry Pi with M2.5 nuts.

# Connect the red wire to GPIO 5V pin and black wire to GPIO GND pin.

==Document==