- You can also connect with 5V transformer without circuit board, black wire with positive, and the other three with negative.
- Each line corresponds to the color of the glowing colors, the green line is the green LED, the red line is the red LED, the yellow line is the yellow LED
- Black wire is for positive, the other three are for negative.
- Two side 3-color red/green/yellow traffic lights.Lights include red, green and amber bulbs.Prewired quality products
- Great accessories for diorama, buildings, train models