LED strip lights are wired by connecting the correct power supply to the strip with matching voltage and polarity. Controllers can be added for dimming or color control, while long runs may require additional power-feed points.
A basic low-voltage LED strip system consists of a power supply and LED strip.
The general arrangement is:
AC Supply → LED Power Supply → LED Strip
The power supply converts the incoming electrical supply into the voltage required by the LED strip.
For example, a 24V LED strip requires a compatible 24V power supply.
The strip should never be connected directly to mains voltage unless it is specifically designed and rated for that type of connection.
Single-color LED strips normally have positive and negative terminals.
The positive output from the power supply connects to the positive side of the strip, while the negative output connects to the negative side.
Polarity must be observed.
A simplified connection is:
Power Supply (+) → LED Strip (+)
Power Supply (-) → LED Strip (-)
Before making connections, power should be disconnected.
The manufacturer's wiring diagram should always take priority because LED strip constructions can vary.
The power supply should be selected according to the total LED strip load.
A basic calculation is:
Total Power = LED Power per Meter × Total Length
For example, if an LED strip consumes 10W per meter and the installation uses 8 meters:
10W × 8m = 80W
The selected power supply should have sufficient capacity for the actual system rather than being operated continuously at its maximum rating.
The exact allowance should follow the LED and power-supply manufacturer's recommendations.
Voltage drop is one of the most common causes.
As electrical current travels through the strip and wiring, resistance causes voltage to decrease along the circuit.
The far end may therefore appear dimmer than the beginning.
This can be more noticeable with:
Long LED strips
High-power LED strips
Undersized cables
Single-end power feeding
Poorly planned layouts
Possible solutions include dividing the lighting into shorter sections, adding power-feed points, using suitable cable sizes, or redesigning the power distribution.
In some applications, yes.
Powering a long strip from both ends can help distribute the electrical load more evenly.
Another option is to divide the installation into several separately powered sections.
The best method depends on:
| Factor | Why It Matters |
|---|---|
| Strip Length | Longer runs increase voltage-drop risk |
| Power per Meter | Higher power requires more current |
| Strip Voltage | Affects current for the same wattage |
| Cable Length | Longer cables create additional resistance |
| Wire Size | Larger conductors generally reduce resistance |
| Layout | Determines practical power-feed positions |
The wiring design should be finalized before the finished furniture, ceiling, or wall structure is closed.
RGB LED strips have separate color channels and therefore require a compatible RGB controller.
The general arrangement is:
Power Supply → RGB Controller → RGB LED Strip
The controller determines the output delivered to the different color channels.
The power supply must still match the LED strip voltage and total load.
A controller intended for a single-color strip should not be used for an RGB strip unless the manufacturer specifically states compatibility.
RGBW and CCT strips have different channel arrangements from standard single-color strips.
RGBW systems add a dedicated white channel.
CCT systems use separate warm-white and cool-white channels.
Therefore, the controller needs to match the specific strip architecture.
The number of wires, connector type, controller, and power requirements should all be confirmed from the actual LED strip specification.
Yes, and this is common in professional lighting installations.
An aluminum channel gives the LED strip a stable mounting surface and helps organize the complete installation.
KOGEE's Aluminium Profile Channel for LED Strip is designed for LED lighting applications and can be supplied in linear, bendable, or curved structures with customizable dimensions and finishes.
The channel can also accommodate a diffuser when the selected design supports it.
The channel does not normally carry the electrical power itself, but its geometry affects how the wiring is installed.
Before ordering the profile, it is useful to confirm:
Cable exit position
Connector size
End-cap space
Strip width
Diffuser position
Mounting method
Available installation depth
For custom profiles, these details can be incorporated into the cross-section design.
This is particularly useful when the profile is integrated into furniture or architectural structures where access becomes limited after installation.
A practical installation sequence is:
Cut the aluminum channel to the required length and remove burrs from the cut edges.
Remove dust and grease from the aluminum mounting surface.
Confirm that the LED strip works before permanently installing it.
Place the strip evenly along the aluminum base without stretching it.
Connect the power and controller according to the manufacturer's diagram.
Check brightness, polarity, voltage, controller response, and uniformity.
Complete the profile only after the electrical system has been tested.
This sequence reduces the need to reopen the finished installation.
Several mistakes are particularly common:
Connecting the wrong voltage
Reversing polarity
Exceeding controller capacity
Overloading the power supply
Using excessively long single-end runs
Using unsuitable cable sizes
Cutting outside the marked cutting points
Installing the diffuser before testing
Using an incompatible RGB or CCT controller
For waterproof LED strips, cutting and reconnecting can also affect the original waterproof construction. The connection should be sealed according to the product requirements.
Yes.
For long lighting projects, profile straightness and dimensional consistency matter.
If the channel is not straight, the finished light line may appear uneven.
If the internal slot varies, the strip may not sit consistently.
If the diffuser groove is inconsistent, covers may fit differently along the installation.
KOGEE's extrusion manufacturing system is designed to maintain profile dimensional consistency and surface quality, with secondary processing available for project-specific requirements.
KOGEE provides aluminum extrusion and LED profile manufacturing for lighting brands, furniture manufacturers, contractors, distributors, and project suppliers.
The factory supports:
Aluminum extrusion
Cutting
Drilling
CNC machining
Surface treatment
Assembly
Inspection
Packaging
OEM and ODM development is also available.
For projects requiring a custom profile, KOGEE can review the LED strip width, diffuser, installation method, cross-section, finish, and quantity before production.
A complete project inquiry should include:
LED strip type
Voltage
Wattage per meter
Strip width
Total length
Power supply arrangement
Controller type
Profile shape
Diffuser requirement
Finish
Quantity
Application
This information helps avoid selecting a profile that fits the strip physically but does not work well with the complete installation.
For lighting projects where the aluminum profile needs to match a specific LED strip, send KOGEE the strip specification, profile drawing or dimensions, diffuser requirement, installation method, finish, and quantity.
The team can review the profile structure and manufacturing requirements together.
For standard LED channels, custom extrusion, OEM/ODM development, or bulk orders, submit the project details through the Request A Quote page.
