Wiring and control accessory
Branch one compatible DT four-pin connection into two
DD4100 is a 16-inch splitter with one female and two male DT four-pin connectors. It helps branch a compatible connection without treating the splitter as a new power source or a light.
Included part and technical limits
Compatibility
Check the complete installation
Match connector pinout, lead arrangement, voltage and the complete harness/fuse/switch capacity. The 20A splitter limit does not establish how many Gen 2 lights a circuit can run. This 9–16V component is not proof of 24V installed-system support.
Product questions
Frequently asked questions
Does the DD4100 splitter work with Glass is Class Gen 2 watermelon lights?
Only with a matching DT four-pin Gen 2 wiring layout. Confirm the exact light, connector, pinout, harness and voltage.
What does this splitter do?
It branches one compatible connection into two plug-in connections; it does not supply power or raise circuit capacity.
Do I need this if I am buying the universal Gen 2 kit?
Choose a separately sold splitter only if the current kit contents and your connection plan need a branch.
Can I keep adding splitters to run more lights?
No fixed light count follows from the splitter. Check total current, voltage drop and every harness, fuse, switch and wire limit.
Does this splitter require cutting or splicing?
A matching DT four-pin layout connects without cutting or splicing. Different connectors or leads require a separate plan.
Will this work with older Glass is Class watermelon lights?
Older hardwired lights may lack DT four-pin connectors. Identify the exact existing parts and wiring first.
Can I use this on a 24V truck?
Diode Dynamics lists DD4100 for 9–16V. Do not assume it works in a 24V installed circuit.
Plan related parts
Choose each part separately
Compare the exact harness
Check the main harness voltage, switch behavior and lead arrangement before adding a branch.
Review mounting and wiring checks
Use the guide's part-number and mounting checks to plan the physical route.
Warranty and support
Warranty terms
Diode Dynamics lists a three-year limited replacement warranty for DD4100. Keep your BTS order information for a claim.
