How can I control 170 small 6V bulbs with MOSFET outputs (PWM dimming)

How can I control 170 small 6V bulbs with MOSFET outputs (PWM dimming) - Printable Version

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How can I control 170 small 6V bulbs with MOSFET outputs (PWM dimming) - hwang - 01-30-2026

Hi everyone,
I am building a lighting control system for about 170 mini incandescent bulbs.
Load

Bulbs: 6V, 0.2A each
Total: ~170 bulbs

Hardware Plan
I plan to use multiple Kincony KC868-A32M (32-channel MOSFET output controllers) to get enough channels.
Wiring Idea
I want to use a common +6V bus and low-side MOSFET switching:

Code:
+6V bus → bulb → MOSFET output → GND

All controllers and the 6V supply will share a common ground.

Questions

Is this the correct wiring method for KC868-A32M outputs?
Can these MOSFET channels support PWM dimming for incandescent bulbs, or only ON/OFF?
What is the best way to control multiple KC868-A32M boards from a PC (LAN/MQTT/Modbus)?
Any important power or wiring concerns for a 170-bulb system?

Thanks for any advice!

RE: How can I control 170 small 6V bulbs with MOSFET outputs (PWM dimming) - admin - 01-30-2026

1. mosfet output 12-24v, not suitable for 6V. if you want 6v load, suggest you chose relay controller.
2. mosfet output can't output PWM.