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One Button, Eight Channels, Total Control Over Your Accessories
The Diode Dynamics DIODD8840 D-Switch Kit is an advanced 8-channel switch panel that puts full, customizable control over your vehicle's 12V accessories at your fingertips. Built with four 30A outputs and four 15A outputs plus a dedicated backlight channel, the D-Switch is designed to run auxiliary lighting, winches, air compressors, and other accessories through one solid-state hub, controlled by the included panel or the companion Bluetooth app. Solid-state construction, an IP67 rating, and a 3-year warranty make it a durable centerpiece for any build.
Key Features
- 8 customizable output channels: four 15A and four 30A, plus a dedicated backlight bus
- 125A maximum current capacity for serious accessory loads
- Dynamic channel assignment lets one button control multiple outputs
- Fast, responsive Bluetooth app for iOS and Android, pairs up to four units
- Four trigger wires plus a dedicated ignition wire for OEM-style automatic activation
- Solid-state design with no relays, IP67 rated, backed by a 3-year warranty
Compatibility
The D-Switch Kit is a universal 12V accessory controller designed to install in nearly any car, truck, or off-road vehicle. Diode Dynamics has tested direct fitment in the Toyota Tundra 2022+, Toyota Tacoma 2024+, Toyota 4Runner 2025, Lexus GX 2010-2023, GMC Canyon 2023+, and Subaru Crosstrek 2013-2017, with straightforward universal installation available for any other 12V vehicle platform.
Specifications
| Detail | Value |
|---|---|
| MPN | DD8840 |
| UPC | Not publicly listed by manufacturer |
| Channel Power | Channels 1-4: 15A each, Channels 5-8: 30A each, Backlight: 15A total |
| Max Current | 125A |
| Operating Voltage | 9-16V DC |
| Wire Size | 4AWG Battery, 22AWG Sensors, 26AWG Controller |
| Intrusion Rating | IP67 Weatherproof |
| Operating Temperature | -40F to 250F |
| Controller Dimensions | 5.06in x 2.66in x 0.45in |
| Hub Dimensions | 8.33in x 6.26in x 1.79in |
| Warranty | 3 Year Limited Warranty |
| Brand | Diode Dynamics |
What's Included
- (1) Switch Panel Hub
- (1) Switch Panel Controller
- (1) Controller Universal Mounting Bracket
- (1) Universal D-Switch Hub Bracket
- (1) 10-foot Controller Wiring Harness
- (1) Trigger Wires and Night Mode Wiring Harness
- (1) 3-foot 4AWG Battery Cable and (1) 3-foot 4AWG Ground Cable
- Button sticker sheets, T-taps, zip ties, spacers, and installation hardware
- Installation and Programming Guide
About Diode Dynamics
Diode Dynamics has spent over a decade engineering and manufacturing automotive LED lighting and control electronics, with an increasing share of products designed and assembled in the United States. The D-Switch reflects that same engineering focus, built to give builders reliable, app-controlled command over complex accessory setups.
FAQ
What is the DD8840?The DD8840 is the Diode Dynamics D-Switch Kit, an 8-channel solid-state switch panel that controls 12V accessories through a physical controller or a Bluetooth app, with four 30A and four 15A outputs.
Is this kit vehicle-specific or universal?It is a universal accessory controller. Diode Dynamics has tested and confirmed direct fitment for several vehicles, but the kit installs in virtually any car, truck, or off-road build using its included wiring harness.
How many accessories can I control with the D-Switch?The hub provides 8 main output channels plus a dedicated backlight bus supporting up to 8 additional backlit accessories, allowing a large accessory setup to run from one controller.
Can I control the D-Switch with my phone?Yes. The D-Switch pairs with a dedicated Bluetooth app for iOS and Android, and a single app can manage up to four D-Switch units at once.
What are the trigger wires used for?The four trigger wires and dedicated ignition wire allow outputs to activate automatically from vehicle signals such as high beams, fog lights, reverse lights, or ignition on/off.
Is the D-Switch weatherproof?Yes. Both the hub and controller carry an IP67 weather resistance rating for the electronics, excluding the wiring terminals themselves.
Does the D-Switch use fuses or relays?No. It uses solid-state electronics with no mechanical relays or physical fuses, reducing points of failure and simplifying long-term maintenance.
What is the installation time and skill level required?Typical installation takes 30 to 60 minutes using a basic toolset, though total time varies depending on how many accessories are being wired into the system.
Install Instructions
- Choose a mounting location for the hub, such as a fuse block lid, battery box, or firewall, using the included bracket.
- Run the 4AWG battery and ground cables from the hub to the vehicle's battery.
- Wire each accessory output into the desired channel using the supplied harness and T-taps.
- Connect any trigger wires to the desired OEM signals, such as reverse or high beam circuits, if automatic activation is desired.
- Mount the controller in the cabin using the included mounting bracket.
- Power on the system and use the controller or Bluetooth app to assign and test each channel.
Diode Dynamics
Diode Dynamics has been designing and manufacturing specialty automotive LED lighting products in St. Louis, Missouri since 2006. Their vertically integrated production model allows tighter quality control and faster product development than offshore brands, resulting in plug-and-play LED upgrades that fit correctly, perform reliably, and carry a no-hassle warranty.Popular Diode Dynamics ProductsThe lineup includes SL1 LED headlight conversion kits for Tacoma, 4Runner, and off-road trucks, white and amber Switchback LED turn signals for Jeep JL and JK, SS3 and SS5 LED fog and driving light pods with SAE and off-road optics, and a full range of interior LED replacement bulbs. Multicolor accent lighting and smart control modules give builders complete flexibility over their vehicle lighting setup.Are Diode Dynamics LED bulbs plug-and-play?Most Diode Dynamics LED bulbs and assemblies use OEM connector configurations for direct plug-and-play installation. Many kits include anti-flicker ...
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