- Joined
- Aug 17, 2018
- Messages
- 39
- Reaction score
- 22
I just did a bunch of testing with the Kessil controller and heres the thing. It sorta works and sorta doesn't.
1. The HEP ballast uses a sinking 0-10v setup.
The ballast provides the 10v and its up to the controller to reduce that voltage to something between 0-10v.
2. Kessil controller uses sourcing 0-10v setup.
Kessil controller provides the 0-10v signal and requires grounding.
So since the ground wire is connected to the HEP ballast 10v wire, and is not able to sink it to ground, the 0-10v signal input to the Ballast will never get low enough.
Here is the kicker, the output plug on the Kessil lights themselves are able to sink the wire closer to ground. Dimming actually works if you plug it to another kessil light. The color controllers the inside T5's, and the intensity controls the outside T5's.
There really is no such thing as a sourcing to sinking coverter. But I am investigating a voltage follower setup or something through an op-amp that will pass the voltage thru while able to sink the 10v to ground (from ballast).
I bet if aquatic life made this adapter, they could sell it as an accessory. would be a win for everyone (well except Neptune).
1. The HEP ballast uses a sinking 0-10v setup.
The ballast provides the 10v and its up to the controller to reduce that voltage to something between 0-10v.
2. Kessil controller uses sourcing 0-10v setup.
Kessil controller provides the 0-10v signal and requires grounding.
So since the ground wire is connected to the HEP ballast 10v wire, and is not able to sink it to ground, the 0-10v signal input to the Ballast will never get low enough.
Here is the kicker, the output plug on the Kessil lights themselves are able to sink the wire closer to ground. Dimming actually works if you plug it to another kessil light. The color controllers the inside T5's, and the intensity controls the outside T5's.
There really is no such thing as a sourcing to sinking coverter. But I am investigating a voltage follower setup or something through an op-amp that will pass the voltage thru while able to sink the 10v to ground (from ballast).
I bet if aquatic life made this adapter, they could sell it as an accessory. would be a win for everyone (well except Neptune).