Reef Angel Forum

Hi Guys,
I have Osram balast analog dimmable, when lights go up and down lamps are flickering.
Is it lamps problem or setup of PWM/analog? Can i do something with that?
Thank you for help.

I'm assuming you got the analog version of RA, right?

Hi rimai, For sure i don't know. I purchased RA from my friend, he told me that he measured dimming port and it goes slowly up and he was informed from you that it is analog even when it is RA not RA+. Can i found it somehow?
Thanks

To give exact situation, dimming works, but when on dimming lamps are dimming but with flickering.

Look underneath the relay box. Does it have a sticker?

There is no sticker. I opened the box and it has jumpers.
How the jumpers should to be set to be analog? 1,2 or 2,3? Box version is 8.1.

2-3 for analog

Both jumpers? Mean up and down? Or one is for actinic and second for daylight. Also is is printed Analog/PWM

Yes, both on 2-3. Each one of the jumpers is one of the dimming channels.

Roberto, thank you for quick answer and help.
Last question regarding dimming channels.
I have this setup: Next VGA is daylight connected to analog osram ballast and next one is actinic connected to LED moonlight. LED moonlight was purchased from you and it works perfect with jumpers set to 1,2. Question is which jumper is up - the analog one next VGA or actinic? Is moonlight analog or PWM? Thank you again for advice.

The one close to the resistors is actinic and should be PWM (1-2) for your moonlights. The one closer to the capacitor is daylight and should be analog (2-3) for your ballasts.

Thank you Roberto, All is ok now.