Dear Mr. Power, Thanks for the lovely reply; basically I have three colours of LEDs in each section. Each section have 30 x 3 watts of LEDs, 1 Red, 2 Blue and 27 white but have different Kelvin rating. Ideally I would like to send commands to each LED driver which is rated at 12V, 100 watts. My LED project is for the reef aquarium and I would like to replicate what happens in the nature. Let's say 8am, I would like my two blue LEDs to come on at a low speed or temperature and then speed or colour temperature slowly increases over the next 30 minutes. This will be SET command for all four sections for the 8am to 8:30am, once this has been achieved I would like my Red LED to come ON at low temperature while the blues are still ON. The Red LED will come ON at let's say 8:30 am. When blue and red mixes it will create sort of red to orange colour which means sun-rise. Once this has been achieved I would like them to stay on for next 10 minutes. Now it is 8:40am, both blue and red are turned off. 8:40am, Now I am left with 27 white LEDs, 2 x 5000Kelvin, 5 x 10000Kelvin, 5 x 12000Kelvin, 5 x 15000Kelvin, 5 x 20000Kelvin ,5 x 25000kelvin rating. I would like to have my high Kelvin rating LEDs to come on but I would like have the option to switch ON certain string at certain temperature. I could set the same settings for all four sections in my LED lighting fixture or maybe have the option to change if required to suit my needs. Now let say it 18:00 and sun is going down, I would like my all the low Kevin rating LED's to go down and at 18:30 almost fades away and then RED led comes ON but BLUE x 2 LEDs to come on at the same time which is almost like sunset. I would like to have this command for around 10 minutes and once 10 minutes gone, I would like to have Red LED to go OFF and blue to stay on until 22:00....only blue and at 22:00 Blue to go down for the next 30 minutes and at 22:30 total darkness. I would like to repeat this process everyday and also have the ability to change any commands if not happy with the current setting. I know I am asking for something really simple but maybe not asking the correct way. I sincerely hope you would be able to help me. Kind regards. tahir Iqbal
