Sunbright Led System

[oreo54]

oh I see, interesting I did not know you could make a transformer that small.

well it's spread out and w/ IC's like bridge rectifiers being able to made small it's possible..
Lay the capacitors down and you save a lot of "up" room.. LED driver chips are tiny too..

Sunbrite circuit board.
You can see AC1 and AC 2 on each end of the board. Also LED +, - (power out) on the right end
BTW they may have proper drivers on board so the controller possibly uses a "proper' dimming protocol like 0-10V.
Should then have more than 2 wires coming out of each controller channel.
Since gen 2 and 3 bulbs are compatible..Like I said earlier, not sure how they are dimmed..I am sure of the AC/DC thing though.

Oh one good thing I read is that a single diode failure (open, not short) shouldn't take out the whole string.
Again though, if one tube totally fails likely spot is those 2 black electrolytics in the middle.
They are like the planned obsolescence CLOCK..

 

[stevenfreeves]

well it's spread out and w/ IC's like bridge rectifiers being able to made small it's possible..
Lay the capacitors down and you save a lot of "up" room.. LED driver chips are tiny too..

Sunbrite circuit board.
You can see AC1 and AC 2 on each end of the board. Also LED +, - (power out) on the right end
BTW they may have proper drivers on board so the controller possibly uses a "proper' dimming protocol like 0-10V.
Should then have more than 2 wires coming out of each controller channel.
Since gen 2 and 3 bulbs are compatible..Like I said earlier, not sure how they are dimmed..I am sure of the AC/DC thing though.

Oh one good thing I read is that a single diode failure (open, not short) shouldn't take out the whole string.
Again though, if one tube totally fails likely spot is those 2 black electrolytics in the middle.
They are like the planned obsolescence CLOCK..

Great information. Do you know what the connections on each end are? Positive and negative on each end or both Positive on one end and negTive on the other or what?

 

[oreo54]

Great information. Do you know what the connections on each end are? Positive and negative on each end or both Positive on one end and negTive on the other or what?

right and left very end connections (though only the right may be wires) are AC so doesn't matter as long as they are the same. Not sure why it's on each end.
The more "in" connection points are marked LED + and LED - AFAICT and only on one end (right in the above pic.)
Which is plus and which is minus I can't tell from the small pic.
Best if you look at your actual board though (seems plainly marked) not sure you want to disassemble a tube.. :)