KOSMOS FM Gundam Aerial LED Kit installation tutorial step by step guide

KOSMOS FM Gundam Aerial LED Kit Installation Guide: Step-by-Step

Complete walkthrough from unboxing to first light — with practical tips from the builder community

2-6 hrs

Estimated Time

Intermediate

Difficulty

No Soldering

Required

Pre-Installation Preparation

What You'll Need

From the KOSMOS Kit:

LED controller box, LED modules (pre-wired), Remote control
Type-C USB cable, Instruction manual, Metal badge

Your Tools:

Side cutters, Tweezers, Cotton swabs, Cable ties
Head-mounted magnifier or good desk lamp

Before You Start

Read the manual completely — understand the wiring diagram before cutting anything
Test all LEDs first — connect controller to power and test each module
Plan your cable routes — identify where wires will run through hollow sections
Consider painting implications — translucent yellow parts should remain unpainted

Phase 1: Body LED Installation

Step 1: Head Unit

Remove the head from the completed model
LED module fits into the hollow head cavity
Route wire down through the neck joint

Pro Tip: Leave a small loop of slack wire at the neck to prevent tension during posing.

Step 2: Chest Unit

Access through the chest intake vents
LED sits behind the translucent green intake piece
Wire routes down through torso and out the back

Common Issue: Chest armor pieces are tight-fitting. Ensure wires don't get pinched when reassembling.

Step 3: Limb LEDs

Routing Strategy:

Arm wires: Route through shoulder joints, down to backpack connection
Leg wires: Route through hip joints, up through torso to backpack

Critical: Avoid wires crossing joint pivot points where possible.

Phase 2: Weapon LED Installation

Beam Rifle:

Single LED at the rifle barrel tip
Wire routes along the underside of the rifle
Leave wire slack for arm posing if displaying in hand

Shield:

Accent lighting at the edges
Wire routes along the shield's inner surface

Phase 3: GUND-BIT LED Installation (Model B Only)

⚠️ This is where installation complexity increases significantly.

The 11 Bit Staves each require individual LED strip installation. This is the critical challenge — you now have 11 bit wires, body harness wires, weapon wires, and power input all converging at the controller.

Recommended Approach:

Group bit wires into bundles of 3-4
Use small cable ties to keep bundles organized
Route bundles along the backpack interior
Leave enough slack for bit deployment poses

Phase 4: Power and Testing

Power Connection Options

Option A: USB Type-C (Recommended for Display)

Connect Type-C cable to controller
Route cable discreetly from backpack or stand base
Connect to USB power adapter or power bank

Option B: Battery Power (Portable)

Install 3×AA batteries in controller compartment
Battery life: 8-12 hours depending on brightness mode

Troubleshooting Guide

Problem	Likely Cause	Solution
Single LED doesn't light	Loose connector	Check connection, ensure polarity correct
Flickering	Insufficient power	Use fresh batteries or stronger USB source
Dim output	Low brightness setting	Increase via remote or app
Remote unresponsive	Battery or range	Replace remote battery, move closer

Frequently Asked Questions

Do I need to modify the plastic parts?

Generally no. The KOSMOS kit is designed to fit the FM Aerial without permanent modification. Some builders trim small alignment tabs for easier wire routing, but this is optional.

Can I still pose the model after LED installation?

Yes, but with care. Leave wire slack at joints. Extreme poses may stress connections. The GUND-BIT deployment (Model B) is the most pose-sensitive element.

What if an LED stops working?

First check the connector — reseat it. If still non-functional, the LED module may need replacement. KOSMOS support or hobby electronics suppliers can provide replacements.

Is the installation reversible?

Yes. The kit uses plug connectors and adhesive LED strips. Removal is possible but may leave minor adhesive residue.

Shop KOSMOS FM Gundam Aerial LED Kit →

Note: Installation guide compiled from official KOSMOS documentation, Chinese builder community feedback (Baidu Tieba, SMZDM), and video tutorial analysis. Individual experience may vary.