Tunze 8850 led blinking

Sygnus · 07/14/2018, 06:34 AM

Hi !

I have problem with my Tunze 8850 led, it starts flashing at the lowest strength. I'm using with 7097 controller.

When start dimming flashing, when i'm set any channel 1% its flashing, above dont have this problem....

I want moonlight to use 1%, but I do not know because it flashes.

Is this error known? power supply, lamp, control error?

Thanks for the help !

Dani

rvitko · 07/16/2018, 08:25 AM

If it does not do this at anything above 1%, we can safely assume 1% is just not enough power to keep it on. Due to small variations in resistance and LED's it is likely too little current and the simple fix is to use 2%. This also sometimes happens with the pumps where 20% will cause them to stop, likewise just going to 21-22% solves it and this happens because in this case 1% is more likely .75% due to variation in the resistance.

Sygnus · 07/16/2018, 11:37 AM

Thank You for the answear !

This is only annoying when the moon phase is 4-5% and about 1% of the light is flashing, then it will blink.

07/14/2018, 06:34 AM	#1
Sygnus Registered Member Join Date: Jul 2018 Location: Hungary, Bonyhad Posts: 13	Tunze 8850 led blinking Hi ! I have problem with my Tunze 8850 led, it starts flashing at the lowest strength. I'm using with 7097 controller. When start dimming flashing, when i'm set any channel 1% its flashing, above dont have this problem.... I want moonlight to use 1%, but I do not know because it flashes. Is this error known? power supply, lamp, control error? Thanks for the help ! Dani

07/16/2018, 08:25 AM	#2
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	If it does not do this at anything above 1%, we can safely assume 1% is just not enough power to keep it on. Due to small variations in resistance and LED's it is likely too little current and the simple fix is to use 2%. This also sometimes happens with the pumps where 20% will cause them to stop, likewise just going to 21-22% solves it and this happens because in this case 1% is more likely .75% due to variation in the resistance. __________________ Roger Vitko Tunze USA "He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!" Current Tank Info: 210 gallon planted tank with Altum Angelfish

07/16/2018, 11:37 AM	#3
Sygnus Registered Member Join Date: Jul 2018 Location: Hungary, Bonyhad Posts: 13	Thank You for the answear ! This is only annoying when the moon phase is 4-5% and about 1% of the light is flashing, then it will blink.