need to design an PWM

I am building a LED panel for my aquarium and need to control the dimmer which requires the following criteria :

Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC or open circuit
Power OFF : DIM ~ -Vin < 0.8VDC or short
100 ~ 1KHz
1mA at PWM dimming OFF and 24VDC input

can someone guide me on where to start in order to design this using arduino ?

thanks

a) Connect a wire from GND on the Arduino to the ground of your dimmer.
b) Connect a wire from one of the pins with a wavy line next to it (eg. pin 3) to the PWM input of your dimmer.

Now do “analogWrite(3,n);” where n is your brightness.

aliyesami:
I am building a LED panel for my aquarium and need to control the dimmer which requires the following criteria :

Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC or open circuit
Power OFF : DIM ~ -Vin < 0.8VDC or short
100 ~ 1KHz
1mA at PWM dimming OFF and 24VDC input

can someone guide me on where to start in order to design this using arduino ?

thanks

Do you have a link to the datasheet / manual for the dimmer?