If you're shopping for VFDs, soft starters, and motor controls, the very first decision is matching the drive to your motor's voltage and horsepower. The two units here are at opposite ends of that spectrum: a 7.5KW 10HP single-to-three-phase inverter and a 1/2 HP 120V adjustable speed control. The right choice depends on the motor you're powering, not just the price tag.
Quick Verdict
For most shops that need to power a three-phase motor from a single-phase line, the Findmall VFD is the better buy at $119.34 because it combines phase conversion and speed control. For small motors that run on ordinary household power, the Leeson at $229.99 is the more suitable match.
Comparison at a Glance
| Product | Price | Input | Output | Load Rating | Best For |
|---|---|---|---|---|---|
| Findmall 7.5KW VFD | $119.34 | 220V, 1 or 3 phase | 3-phase 220V | 10 HP / 7.5KW | Phase conversion and larger motors |
| Leeson AC Motor Control | $229.99 | 120V AC | 0-230V, 2.4A | 1/2 HP | Small AC motors on 120V power |
Where the Findmall Wins
The Findmall is in a different class. It accepts 1 or 3-phase input and delivers a 3-phase output, making it a true phase converter for hard-starting loads like air compressors and HVAC units. The SPWM control system includes two sets of terminal functions, so you get more flexible digital and analog control wiring than many inexpensive drives. At 20A maximum output per phase, it is built for large three-phase motors.
Where the Leeson Wins
The Leeson is built for small motors and lower-voltage environments. It takes a low-voltage AC input and provides an adjustable output range, making it a clean fit for bench tools, conveyors, or pumps. It's also listed as a New - Open box unit with a model number, which is worth knowing if packaging matters to you.
Product Notes
Findmall 7.5KW VFD
This drive is the heavy lifter of the pair. It accepts either 1 or 3-phase 220V input, so if your shop only has single-phase, you can still run a three-phase motor. The frequency range spans 0-400Hz, and with 20A per phase, it can handle constant torque loads like air compressors and variable torque loads like pumps and fans. Its SPWM control and dual terminal sets give it more wiring flexibility than other inexpensive VFDs. The trade-off is that it's built for 220V input, and its 20A output is meant for 10HP-class motors. A small 120V setup would be a poor match without additional voltage conversion.
Leeson 1/2 HP AC Motor Control
The Leeson is a compact, dedicated AC motor speed control for small motors. It runs on 120V input, outputs 0-230V with a 2.4A rating, and is matched to a 1/2 HP load. That makes it a straightforward choice for a small lathe, grinder, or conveyor where you don't want a high-power inverter. It's a New - Open box unit with a model number 13308765 for reference. The main limitation is its current output: 2.4A is only enough for a 1/2 HP motor, so it can't be used to power larger equipment. If your motor is bigger, you'll need the Findmall.
Final Choice by Use Case
- Need to run a large three-phase motor from a single-phase supply? The Findmall is the winner, and it costs less.
- Have a small motor that needs precise adjustable speed? The Leeson is the practical fit, even though it costs more.
- Want one box that does phase conversion and high-current speed control? The Findmall's combined features and lower price make it the obvious buy.
