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DUAL CHANNEL PWM DIMMER

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Overview

2 Channel PWM (pulse wave modulation) dimmers are ideal for controlling more than one bank of LED or incandescent lighting, such as 2-color LED light strips or any combination of lighting (panel lighting, overhead map lights, foot well lighting, etc.). Each rheostat controls a separate lighting channel and contains its own On/Off switch (in the fully counterclockwise position)


1.5 Amp per channel version (12-14VDC systems) controls up to 18W per channel
7 Amp per channel version (12-14VDC systems) control up to 97W per channel and adds over-current protection and dual independent heat sinks
Ideal for LED or incandescent lighting
Dual rheostat shafts permit independent control of each channel
Screw-down terminals for easy connection of input and output wires
Powerful enough to operate a wide range of lighting products
High-quality push-on knob. Shaft length accommodates panel widths to 5mm

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Reviews

I see a lot of reports of failure here. I originally purchased one of these in 2015 to drive two LED strips for panel and flood lights in my RV-8. It worked flawlessly for several hundred flight hours (probably 10-20 hours actual lighting) and 5 elapsed years. I recently purchased a replacement after I physically damaged the original during a panel upgrade. The new one has added heat sinks on the transistors which should help. Here is my issue. The new replacement has slightly wider placement of the two POTs, requiring me to remake a panel overlay. I may return the product and make my own PWM which is a very simple circuit.

Martin W
March 19, 2020

Right out of the box, one channel sputters and blinks in the lower 30% or so of its range. I swapped my red and white LED segments and confirmed that its the drivers and not the load causing this. Disappointed and wouldnt buy again.

John
June 7, 2021

Installed dual channel unit to control strip lighting. Worked great for 5 hours, then one channel lost its low end range. Doesnt come on until too bright to be useable at night.

Crossroads
January 23, 2018

one side quit in 10hr total failure in 300hrs

Terry E
August 9, 2017

This unit was defective right out of the box. I hooked it up, and it will control 2 channels of LED strip lights. When I mounted it in the panel, the unit grounds out and both channels go out. Unusable.

Ron
August 10, 2017

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the warranty on this item?

Per the supplier: The Dual Channel PWM Dimmer has a 30 day warranty from customer receipt of product.

Q: I would want to know the panel cutout dimensions for the two-chanel PWM dimmer with part number 11-10783. Could you provide me this information?

We have updated the full instructions and specifications to the "Documents" tab of this page including the mechanical drawing of the unit with the full dimensions.

Q: The instructions say to Always place a properly rated fuse between the dimmer and power source. What size fuse or breaker is needed?

The fuse or breaker size is determined by the load. For most installations it would be quite small - 1 amp or 2 amps.

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