JTD1503GYR 3PCS Model Railroad Train Signals 3-Lights Block Signal N Scale 12V Green-Yellow-Red Traffic Lights for Train Layout New

Solid metal, very nice. Wired for three individual lights using a common ground. Be aware though, the positive wire is black. I made my own sequencer to control them. They look great on my layout.

These signals are really tremendous! They are a great addition to my layout and extremely authentic looking! It never ceases to amaze me how these items can look and act so real! Now I get to wire them in for a little extra prototypical functioning !

I just got one, wired it up to a Raspberry PI, and got them lit in a few minutes time. The wires are tiny, which is to be expected. Testing with a Raspberry Pi at 5 volts with a 1k resistor (LED's routed through transistors so I can use 5v with 3v3 GPIO), the LED's are visible, and a brightness which seems to match the scale. Overall, these are very nice and will look great on my layout.I gave it 4 stars because of what's not in the description. Green is locked out when red or yellow is lit. So, it seems the fixture will do some amount of thinking for you. I understand that green should not be lit prototypically when yellow/red is lit. But if they come wired independently, then the customer should decide which is on/off and when. Or it should be stated clearly so the buyer knows what they are getting. This is not due to how I have wired it (5v to black, red/yellow/green wires are the collector of one of three 2n3904 transistors with emittor to ground), as moving the connections around results in the same behavior. Toggling each gpio on/off turns each led on/off as expected. If green is on, and red/yellow is turned on, green turns off. Then, turning red/yellow off, turns green back on without toggling the gpio for green. So, this is by design. My reason for flagging this is that I would like to be able to "test" the LED's by turning all three on at the same time briefly to prove everything is working at a glance. I would do this for all signals on the controller at power on so I know everything is working. Wires break/detach, and I would like to be able to see if something if something is wrong at a glance, and know where to look first.

An exceptionaly well made and detailed product. Excellent value for the money.

I really like these lights very bright they look good on my layout. very happy

Excellent value, working great with block detection circuit.

I used the signals on my n scale train layout. they look very realistic.

Besides what the headline says, the wiring is color coded (RGY), and each unit comes with the proper resistor attached for 12VDC operation, In this respect, these units are superior to those offered by NJ International or Tomar (at much greater prices). Size and height are correct for n-scale. My only complaint is that the signal head is offset laterally from the mast. I cant remember seeing any signals on any US railroad that has signal heads offset in such a fashion.

llegaron rápido y bien empacados. se ven muy bien hechos y se acoplan bien a la escala. dan una buena vista.