does support a small water pump? I already have a similar one in my water pump, but this one,in the description says it doesn't support it, why?

You have to start the motor at 100% and then back it down to the desired RPM. I am running a one horsepower buffer on mine and you can definitely tell when you put too much pressure on it that the motor wants to stall. I would think a water pump would take a lot of amps and not like being slowed down.

so i could use this to control the speed on a bench sander / grinder or a bandsaw?

I don't think so...I will control things like a shop vac or router...something this is a DC motor that is supplied with AC...

I have an angle grinder, will this work with it? Thanks

Yes, the voltage of the angle grinder can be adjusted If you have any questions, please contact our email: Bosun128888@outlook.com

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AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat

Product ID: 537532995

Details

Brand
SDRGEEK
Color
Black
Item Weight
1.08 Pounds
Material
Metal
Product Dimensions
4.49"L x x

⚡15A max current

🔥4000W max resistive load

🔧0-220V adjustable output

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€ 62.57

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Master your motor’s rhythm with precision power control!

BUILT TO ENDURE - Premium SMD thyristors and all-aluminum heat sinks ensure durability under high temps.
SAFETY FIRST ALWAYS - Zero hysteresis with peak absorption circuit protects your device from spikes and surges.
POWER MEETS PRECISION - Seamlessly control voltage from 0 to 220V for tailored motor performance.
VERSATILE COMPATIBILITY - Perfect for fans, routers, heaters, and more—empower your workspace with reliable speed control.
INDUSTRIAL GRADE RELIABILITY - Robust metal casing with double-sided copper PCB and phosphor bronze fittings for ultimate safety.

The SDRGEEK AC Variable Speed Controller offers adjustable voltage control from 0 to 220V with a maximum current of 15A and supports up to 4000W resistive loads. Engineered with high-quality SMD thyristors, aluminum heat sinks, and a durable metal casing, it ensures reliable, safe operation for various electrical appliances like fans, routers, and heaters. Designed for industrial and DIY applications, it delivers precise motor speed regulation while protecting against electrical spikes and overheating.

Specifications

ASIN	B0C2VLSVR5
Best Sellers Rank	#293,238 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #233 in Electrical Motor Controls
Brand Name	SDRGEEK
Color	Black
Customer Reviews	3.9 3.9 out of 5 stars (129)
Display Type	LCD or LED
Included Components	controller
Item Dimensions L x W x H	4.49"L x 3.94"W x 3.15"H
Item Weight	1.08 Pounds
Manufacturer	SDRGEEK
Material Type	Metal
Model	SD-4000W-01
Part Number	SD-4000W-01
Smart Home Compatibility	Not Smart Home Compatible
Unit Count	1.0 Count

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