Is it possible to connect a sound board of some kind to this? i would like to run a motor, leds, and sound effects.

I doubt this little board can handle that. It’s really intended for LEDs and small 12v accessories, like on a model train layout.

Anyone find problems with the dimmer. I find it very touchy and does not work at all at times. Is this a defect?

I would say yes. I have four of them and a fifth stays dim all the time! They are working perfectly except that fifth one. I would replace your faulty pdp board. I think you just were unlucky this time. Hope this helps.

Can use with a power supply that is ac input of 100-240v 1.5a 50-60hz and output of 12v 4.0a?

Yes it will work with voltages of 4 to 24 volts ac or dc

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Description

⚡ Light up your model world with power and precision!

STABLE VOLTAGE OUTPUT - Choose stable 3V, 12V, or direct input voltage to match your lighting needs.
EXPANDABLE MODULAR DESIGN - Easily link multiple boards to scale your lighting system without limits.
MASSIVE LIGHTING CAPACITY - Power up to 28 LED lights simultaneously—perfect for expansive model setups.
PRECISION BRIGHTNESS CONTROL - Integrated dimmer lets you dial brightness clockwise for perfect ambiance.
UNIVERSAL POWER COMPATIBILITY - Seamlessly accepts 4V to 24V AC or DC inputs for ultimate flexibility.

The Evemodel PCB012 Power Distribution Board is a compact, versatile hub designed for model train lighting systems. It supports a wide input voltage range (4V-24V AC/DC), can power up to 28 LED lights, and features adjustable dimmer and voltage controls for precise brightness and stable output. Its modular design allows easy expansion by linking multiple boards, making it ideal for professional-grade, scalable lighting setups.

Specifications

Brand	Evemodel
Light Type	LED
Special Feature	可调式
Wattage	24 watts
Incandescent Equivalent Wattage	25 Watts
Light Color	Daylight White
Voltage	4 Volts
Unit Count	1 Count
Number of Items	1
Shape	Rectangular(r)
Indoor/Outdoor Usage	Indoor
Power Source	Corded Electric
Power Consumption	24 Watts
Item Package Quantity	1
Light Source Type	led
Item Weight	2.4 ounces
Product Dimensions	3.74"W x 0.59"H
Accepted voltage frequency	100 to 240 Volts and 50 Hertz to 60 Hertz
Bulb Diameter	3.74 Inches
Control Method	App
Efficiency	High
Manufacturer	evemodel
UPC	721821402681
Part Number	PCB012
Item model number	PCB012
Special Features	可调式
Batteries Included?	No
Batteries Required?	No

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