Reddit reviews Facmogu DC 12V 3A Power Adapter, 36 Watt AC 100-240V to DC 12Volt Transformers, Switching Power Supply for LCD Monitor, Wireless Router, CCTV Cameras 2.1mm X 5.5mm US Plug
We found 4 Reddit comments about Facmogu DC 12V 3A Power Adapter, 36 Watt AC 100-240V to DC 12Volt Transformers, Switching Power Supply for LCD Monitor, Wireless Router, CCTV Cameras 2.1mm X 5.5mm US Plug. Here are the top ones, ranked by their Reddit score.
Input Voltage -- 100V-240V 50/60Hz; Output: DC 12V 3A (36W) max; Output adaptor jack size: 5.5mm x 2.1mm, US plug type. 【We have updated the length of the line. If you receive a previous version, please contact us.】Safety Features -- Over-voltage protection, over-current protection, short circuit protection.Voltage Consistency -- No voltage fluctuations at power on, during transmit, receive, or at power off. It will protect your electronic products from destruction.Widely Use -- Great for LCD monitor, wireless router, CCTV cameras, 3D printer, ham radio transceiver, camera, car subwoofer amp, audio amplifier, RC LiPo chargers, computer project, wireless router, ADSL Cats, HUB, audio/ video power supply. Indoor use only!1-YEAR WARRANTY -- We offer 1-year guarantee period. If you have any questions or concerns, please don't hesitate to contact us.
I made my own by buying two buck modules like these (https://www.amazon.com/eBoot-LM2596-Converter-3-0-40V-1-5-35V/dp/B01GJ0SC2C/) and wiring +9VDC and +5VDC. I then put them in a 3D printed case I designed and powered the input side of the modules with a generic AC/DC PSU (https://www.amazon.com/Adapter-100-240V-Transformers-Switching-Wireless/dp/B073WSWT34) that had enough capacity to drive everything (3A).
http://i.imgur.com/qx7m0K6.jpg
http://i.imgur.com/tsiMTID.jpg
The only downside is it doesn't provide 9VAC, which is needed for the RTC and possibly some peripherals.
The regulators were $4, 3D material $1-$5, PSU $9. The wire was probably $1 and the grommet $1. I salvaged the power connector (DIN 45329) and soldered into it, but you may be able to find those for $2 (https://www.mouser.com/ProductDetail/REAN-Neutrik/NYS323G?qs=sGAEpiMZZMvf6myxbP4FpHeA2rMiar4t9tRsaFKojIY%3D)
Total cost: time + $18 to $22 + development costs (failed 3D cases, buying some items in bulk)
I just did this, I bought a siren, hooked up directly up to a power supply and plug the power supply into a smart outlet. Works fine. the only trick is to match up the voltage and current requirements of the siren with an appropriate power supply.
The siren was this: Honeywell Wave 2 siren
Takes 12 volts, 500 milliamp. Pretty sure I used this power supply (I've been buying a lot of power supplies lately) DC 12V 3A Power Adapter which was gross overkill (I would have been fine with a 1A) but it was handy, and I might hook up a flashing light too.
The siren does want to be hardwired, but I had a bunch of these power jack adapters so I put a female one on the siren so I could swap power supplies or add an extension easily.
I ordered this one is this one different?
You’ll need a 12v3a power adapter and then you’ll need an EIAJ-04 adapter
Edit: those little shits are hard to find but if that link doesnt work for whatever reason or they are sold out because i couldn’t see the price since i don’t have a login with them, just make sure you’re getting the EIAJ-04 plug barrel,