jerryc41 Loc: Catskill Mts of NY

I got a little display case from China through Amazon. It has a streetlamp that is supposed to light-up, but there are no directions for wiring. On the rear of the base is an ON/OFF switch and a USB port. There is also a little, white spring-loaded wire connector. There's no provision for a battery, so maybe the lights can operate only when it is connected to UBS power. It's obvious from the pictures, but not in real life, that two of the wires are insulated, and two are not. I took some quick shots and posted them below. That white terminal in the first picture doesn't seem to serve a purpose, considering the components that are supplied.

I'm guessing that the red and black wires would go to one side of the white connector, and the streetlight wires would go to the other side. I'm ready to hear expert opinions from the expert electricians here.

All that green stuff is the "grass" that came off the display. That was a bad idea. Painting it green would have been better. Maybe I'll get some model train grass and glue that down. These cases are no longer available, so it's good I got them when I did.

DickC Loc: NE Washington state

Didn't it come with instructions??

alberio Loc: Casa Grande AZ

The red and black are obviously the power source, but what voltage? The black wire goes through the on/off rocker switch. The two white wires probably attach one port of the spring connector and the two bare wires connect to the other port, then plug it into the white receptacle on the circuit board. Just a guess. Does the display allow you to import music through the USB?
If you look closer to the circuit board, there might be a voltage printed on it somewhere. It should only be a DC voltage and not A/C.

jerryc41 Loc: Catskill Mts of NY

The only directions were pictures and Chinese writing showing how to assemble it. The pictures do not even show the lamp or the wires. Directions weren't necessary for assembly.

jerryc41 Loc: Catskill Mts of NY

I figure the voltage is going to come from the USB cable, whatever that is. When I get these finished, before or after Christmas, I'm giving one to my son and one to a friend. They both have blue Honda Fits, and I have such a car to go into each one.

alberio Loc: Casa Grande AZ

You wouldn't need the heavy gauge wires and rocker switch and circuit board to make the 5 volt USB run two low voltage led lights. The higher voltage 12v or less would run through the rocker switch, then into the circuit board to be converted to a lower voltage, also maybe programmable light brightness, flashing or possibly color change. I don't see the USB as the source of power.

BebuLamar

If you have a meter and with the USB port connected to a USB port that has power (a USB charger for example) then measure the voltage between the red and black wires you should have 5V when you turn the switch on and 0V when you turn the switch off. If so you can connect the street light to the black and red wires. I would think the 2 brown wires are supposed to be connected to the red wire and the 2 white wires connected to the black wire.

PoppieJ Loc: North Georgia

possibly you could plug in a usb charger to the port and it would work

jerryc41 Loc: Catskill Mts of NY

That's what I think, but I'd rather get the wiring right the first time around.

jerryc41 Loc: Catskill Mts of NY

Thanks.

jerryc41 Loc: Catskill Mts of NY

Thanks.

goofybruce

Jerry; A suggestion: contact your county community college (maybe even on-line) to see if they have someone on faculty who reads Chinese, or, possibly a local Chinese social club. Another possibility is the county Social Services department who might have someone on staff.

bikinkawboy Loc: north central Missouri

What is the large white plastic piece shown in the photo with the street lamp? And what does the writing on the right side say? It appears to me to be numbers followed by a V (for voltage). As for the red and black wires, one immediately thinks of that as output to power the lamp but circuit boards normally have +and- on the input side, not the output side. Makes me wonder if the thing is set up to be able to run on either batteries or a USB charger.

gastech1949 Loc: Imperial Beach, CA.

USB power is 5V DC Red wire is positive, Black wire is negative. (connect to USB power supply and check with a meter that red is +5v and black is -) If that is correct, connect both white wire to red and the bare wires to black and the light should work. Switch is for on and off as shown in your pictures. Before anything else with a good ohm meter you should check continuity from one white wire to the other white and both bare wires. If you get continuity from that white wire to one bare wire you should check the other white wire to the 2nd bare wire, all Ok proceed with above
Hope that helps. (55 years experience as an electrician)

bnsf

The light looks like an LED lite that may have a low voltage. Try a low voltage battery of 1.5 or 3 volts DC and see if the light will light. Then if it is lighting but it is low try adding voltage up to 6 volts and see what happens. This LED could be a 3 Volt or 12 Volt DC light. I did not notice if there is a resistor on the power lead of the light. If there is that the light is a low voltage light. Your best bet if you have a variable DC transformer like the ones they
us on a toy train layout you can see what voltage this light is required to light. Remember when you use a variable DC transformer always start the voltage at the lowest setting and use a volt meter when the light starts to shine and then you can go from there and find the transformer that will light the light. If you need any more help send me a Private message and I will help you getting your light to light.