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Two small green plastic PWM motor speed controllers with terminal blocks and adjustment knob

RioRand 1-OPKL-8L-5A PWM DC Motor Speed Controller 5A 3V-35V 2PCS

SKU CH-F9QP-TPWP6 MPN 1-OPKL-8L-5A

Adjusts DC motor or LED brightness from 3 V to 35 V with 5 A overcurrent protection in a compact 30 mm by 24 mm module

  • Item nameRioRand
  • Rated voltage35 V DC
  • Power consumption5 A, 35 V DC
  • Item descriptionRioRand, 1-OPKL-8L-5A, touch, DC motors, DC loads
  • Product weight15 g
  • Surface finishPlastic
  • Smooth 1%-100% linear speed control via 10kHz PWM frequency
  • 5A resettable fuse protects against overcurrent spikes automatically
  • Individually tested units with reinforced soldering ensure stable operation
  • Compact 30x24x15mm design fits tight installation spaces easily
  • Controls DC brush motors, fans and LED strips for DIY projects

PWM DC Motor Speed Controller 5A

This RioRand 1-OPKL-8L-5A module adjusts the speed of DC brush motors and the brightness of LED strips using a 10 kHz PWM signal. It accepts a 3 V to 35 V input range and delivers a 1 % to 100 % duty cycle for smooth, linear control. A built-in 5 A resettable fuse provides overcurrent protection that automatically resets after cooling. The package contains two identical controllers for parallel projects.

Compact 30 mm x 24 mm x 15 mm Board for Tight Builds

Each controller weighs 15 g and fits into small enclosures, freeing space for other components in robotics, automotive mods or DIY electronics. The board operates in two voltage modes: a default 5 V to 35 V range and a short-contact 3 V to 15 V mode for low-voltage loads. Reinforced soldering and individual functional testing support stable long-term operation. Wiring connects directly to the motor and power supply without extra adapters.

Makers Needing Simple Brushed Motor or LED Dimming

This suit builders who want plug-and-play speed control for DC brush motors, cooling fans or LED lighting within the 5 A limit. It is not for brushless motors, loads exceeding 5 A, or systems requiring closed-loop feedback or higher voltage rails. Users needing isolated control interfaces or programmable profiles should look at more advanced modules.

How it compares

Measured against everything we stock in Fan Speed Controllers & Timers, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 71% of the 42 comparable items (median $19.99).

Specifications

Product
Brand nameRioRand
Model name1-OPKL-8L-5A
Item nameRioRand
Power
Rated voltage35 V DC
Power consumption5 A, 35 V DC
Size & build
Product weight15 g
Surface finishPlastic
Main materialPlastic
Product dimensions30 mm × 24 mm × 15 mm

Questions about this item

Will the 5 A resettable fuse trip during continuous full-load operation?

The controller is rated for 5 A at up to 35 V; the built-in resettable fuse disconnects only on overload and resets after cooling.

Does the board run hot or need extra cooling when driving a motor at 35 V all day?

The compact 30 mm × 24 mm × 15 mm plastic housing has no heatsink; sustained high-current use may require additional airflow.

What power supply and motor type must I already have to use this module?

A DC source between 3 V and 35 V and a brushed DC motor or compatible DC load such as a fan or LED strip.

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