So i have a COB LED wired up to be triggered by a solid state relay. It is set up to run off 110 power that goes through a power supply and then to the LED. At first I had the relay wired in before the power supply and only two wires going from the outlet, to the power supply and then the power supply was connected to the LED. This worked but there was about a half second delay before the LED lit up, and for this project it needs to be instant.
The attempted solution was to move the relay intersection in front of the power supply.
So now there are four wires going from the outlet and the relay to the LED and Power supply location
and the relay intersects the circuit after the power supply.
This solved the delay issue and the responsiveness is immediate when the relay is triggered.
However, now the LED lights up very dim and only certain points in the array light up.
WINGONEER Low Level Trigger 4-channel 5v Solid State Relay Module Board SSR
Features:
5V solid state relays per channel 250V 2A, output with resistive fuse 250V 2A
4 channel 2 AMP Solid State Relay board Good for lighting- holiday displays etc
The input control signal voltage: (0-0.5V LOW solid state relay OFF) (2.5-20V high solid state relays ON)
Rated output load: 2A at 100 to 240VAC (50/60Hz)
Load voltage range: 75 to 264VAC (50/60Hz)
Load current: 0. 1 to 2 AMP
Power supply: 5VDC / 160mA (all channel ON)
Load type: General purpose
Isolation: Phototriac
Zero cross: Yes
Yes that one on ebay is the relay.
Just tried the circuit with a mechanical 10A relay in place of the 2A solid state and it worked.
Could this amperage difference have been the problem?
That relay you are using is an AC output solidstate relay and will not switch a DC driven output circuit properly because the output devices in the relay are thyristors that can only properly switch AC loads. To switch a DC driven circuit you can either use a mechanical relay or a DC output Solid State relay where the solid state relay output is a simple transistor.
It’s a zero cross it’s a triac. Getting back to the issue you need to switch the AC side of the LED power supply with this or get new relays that switch DC which is safer.
OOPS, wolframore is right and I should have wrote Triac (which is a back to back thyristor) Either way the problem is more or less resolved in that you can't switch a DC load with an AC output solid state relay.