Firstly may i say hello to anyone reading this. I am a new user to the site and found the site whilst looking for a solution to the problem below.
Quick question for all you LED boffins, its driving me mad. I have recently made a light for the wifes greenhouse using some Cree CXA3070s (all working fine) with the addition of 50 Deep blue 3w LED's http://futureeden.co.uk/products/3w-royal-blue-led-epiled-440-450nm-with-star-pcb-heatsink and 100 3w Deep red LED's http://futureeden.co.uk/products/3w-deep-red-led-epiled-640-660nm-with-star-pcb-heatsink
All wired in banks of 10's wired in series and each ten driven with its own driver http://futureeden.co.uk/products/constant-current-led-driver-600ma-28w-30-50v Both the Red and Blue's are wired in the same way
Now the problem i am having is that the sets of 10 blues all work perfectly yet the sets of 10 reds all flash on and off at 2 sec intervals. The red and blue led's are the same wattage and the same voltage. I have checked all solder joints, LED polaritys and also tried changing the LED drivers wired to the blue ones to the reds but with the same results. I have noticed that when wired the Blue circuit LED driver outputs measures between 32 - 38v as would be expected yet the Red LED drivers only measure between 14 -18v. I Any ideas would be gratefully received as I out of ideas
Quick question for all you LED boffins, its driving me mad. I have recently made a light for the wifes greenhouse using some Cree CXA3070s (all working fine) with the addition of 50 Deep blue 3w LED's http://futureeden.co.uk/products/3w-royal-blue-led-epiled-440-450nm-with-star-pcb-heatsink and 100 3w Deep red LED's http://futureeden.co.uk/products/3w-deep-red-led-epiled-640-660nm-with-star-pcb-heatsink
All wired in banks of 10's wired in series and each ten driven with its own driver http://futureeden.co.uk/products/constant-current-led-driver-600ma-28w-30-50v Both the Red and Blue's are wired in the same way
Now the problem i am having is that the sets of 10 blues all work perfectly yet the sets of 10 reds all flash on and off at 2 sec intervals. The red and blue led's are the same wattage and the same voltage. I have checked all solder joints, LED polaritys and also tried changing the LED drivers wired to the blue ones to the reds but with the same results. I have noticed that when wired the Blue circuit LED driver outputs measures between 32 - 38v as would be expected yet the Red LED drivers only measure between 14 -18v. I Any ideas would be gratefully received as I out of ideas