Lightobject ESSR-25DAC Solid State Relay, DC In AC Out, 25 amp

Unfortunately, the version I _received_ is marked that the output is 12v-220v and I need to switch 10v. The good news here is that despite the markings, it seems to work reliably down to at least 9v, so I went ahead.Even more unfortunately, and a bigger problem, is that even though the input (trigger) voltage is supposed to be 3-32v, it won't trigger at 3.3v if the ambient temperature is 62 degrees F. Worked reliably at 5v trigger input. Worked great with 3.3v at 77 degrees F. Since I'm using this in a test rig powered by a Raspberry Pi, that is unacceptable.I'm putting these on the shelf for a future project, they seem to work fine otherwise.

I bought this a year ago (Aug 2012) to use as a relay switch on my solar battery to turn on a 4 amp 12v water pump to pump rainwater to my uphill barrels. I ran a 3v signal wire with magnetic switches attached to floats. I'm not sure what failed first, but I heard my pump running continuously, sucking air and straining. By the time I reached it, the pump had burned out because it had been sucking air for several minutes. The switch had fused ON and slightly melted.To be honest, I don't know if the pump burned out and shorted first (i.e. the float switches failed to turn circuit off when barrels were empty), causing high amps through the relay which killed the relay, or if the relay fused ON which burned out my pump.I bought a new pump, and I'm going to buy another Amico relay. It worked wonderfully for a year, and I'll put in added protections this time. I'm knocking a star off for the failure mode of fusing closed.Lesson learned: Put the load line on a 10-20A fuse or breaker like the Bussman CBC 20HB (Amazon, $5-6) and buy the Amico heat sink ($6). Both are good value for insurance.

I ordered this product to use it with a solar panel for a renewable energy project. This was my first time using these types of solid state relays. It must have come from overseas because it took about 2 and a half weeks for it to arrive. When it arrived, there was a broken chip of plastic that came from the corner of the relay housing, which wasn't surprising since it came in just a regular envelope. However, it was nothing super glue couldn't fix and did not hinder the functionality of the relay.The relay works great and as advertised. The relay was drivable with the use of an Arduino UNO digital pin. Even though the relay says 3V-32V for an input, the relay I have was engaged at a voltage of about 2.86V.The relay has a very useful red light that lights up to show that the relay is operating, and turns off when the input voltage is disconnected. There is a very slight voltage drop (about 0.13V for the relay I received) so you may have to consider that. The relay uses screws to clamp down on the wires so the wires for my project were really secured.Overall, a great product, and would recommend this!

I am using this relay in a DC-DC low voltage application -12v, 3Amp. It is my first use of a SSR, I have had bosch style relays fail over time and thought I would try this non-mechanical solution. I like the idea and plan on using more of them in other projects. It has worked, the LED is nice so you know when circuit is active. I have not noticed any heat build up at all. I did use the tower heat sink. I would guess it would get hot if I was using it in a high amp application like refrigeration. So far so good, one month of daily use, no failure.

I bought this to control the heated bed on my 3d printer. I'm using a 19v DC supply to switch a 12v DC, 11 Amp heater on and off with a separate temperature controller. I have this mounted to the metal frame of my printer and I also added a small computer fan to help cool the back side of the SSR. The SSR gets pretty hot by itself but I also have it inside my printer enclosure which reaches 80-100deg F. Its been working fine for about 100 hours inside the enclosure. I would recommend the heat sink for this SSR or your own fan cooling.

Used this to replace a cheap SSR.This Fotek ran perfectly and much cooler than the one it replaced.MOSFET technology is semi-conductor based, so has resistance and will generate some heat.You need a heat sync and either thermal paste or a thermal pad, or the SSR will overheat and fail.

Relay was easy to connect into my circuit and has performed flawlessly. Would recommend the heatsink if you plan to run any significant current through it. Even a small fan makes a huge difference in the heat dissapation. Would purchase again.

very solid product..exceeds expectations..works as described.Easy to hook up to wires with nice screws and little plates. Just feels heavy and like a quality product. switches as expected..I did not have a challenging application, however..