X4 012301W

OceanLED X4 Ultra White Underwater Light wiring diagram

Single-colour X4 underwater light with 0.8 A at 12 V or 0.4 A at 24 V and 10 W maximum nominal power. The manual specifies a separate 1.25 A fuse for each light. Red is positive and black negative; the RGB/DMX wiring diagrams do not apply to this white version.

Nominal voltage
12 V
Compatible systems
12 V / 24 V
Rated power
10 W

Wiring diagram

How the X4 Ultra White is wired.

Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.

OceanLED X4 Ultra White Underwater Light wiring example with 3 components: House bank, Fused DC distribution, X4 Ultra White. 4 cable connections. Crossings are not junctions.Fused DC distribution 1 to X4 Ultra White Red +: 16 AWG · 1.25 A fuse, 10 ft one way. Fused DC distribution 1 to X4 Ultra White Black −: 16 AWG, 10 ft one way. House bank + to Fused DC distribution IN +: 16 AWG · 2 A fuse, 1.0 ft one way. House bank − to Fused DC distribution IN −: 16 AWG, 1.0 ft one wayFused DC distribution 1 to X4 Ultra White Red +: 16 AWG · 1.25 A fuse, 10 ft one wayFused DC distribution 1 to X4 Ultra White Black −: 16 AWG, 10 ft one wayHouse bank + to Fused DC distribution IN +: 16 AWG · 2 A fuse, 1.0 ft one wayHouse bank − to Fused DC distribution IN −: 16 AWG, 1.0 ft one way12 V 200 Ah house bankHouse bank++−−Blue Sea 5025 ST Blade Fuse BlockFused DC distributionIN +IN +IN −IN −1111OceanLED X4 Ultra White Underwater Light. Exact manufacturer fuse is 1.25 A per X4. Supply wiring and switching for multiple lights must account for their combined load.X4 Ultra WhiteRed +Red +Black −Black −16 AWG · 1.25 A fuse16 AWG16 AWG · 2 A fuse16 AWG
OceanLED X4 Ultra White Underwater Light wiring example with 3 components: House bank, Fused DC distribution, X4 Ultra White. 4 cable connections. Crossings are not junctions.Red = positive · dark = return · dashed = signal. Cable labels are example values; use the equipment instructions and actual installation lengths.

Exact manufacturer fuse is 1.25 A per X4. Supply wiring and switching for multiple lights must account for their combined load. Manufacturer installation manual

Edit this wiring example

Cable sizing for this example

Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.

10 ft one way

12 V system

Wire
16 AWG · 1.5 mm²
Example fuse
1.25 A
Design current
0.8 A
Voltage drop
0.5%

Sized against ABYC E-11. The design current is the part's continuous draw. The length is one way; voltage drop includes an equal-length return.

Run-length and manufacturer assumptions

The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.

Exact manufacturer fuse is 1.25 A per X4. Supply wiring and switching for multiple lights must account for their combined load. Manufacturer installation manual

Show sizes in mm²

Supporting parts

  1. 20 ft total of 16 AWG (1.5 mm²) marine cable
  2. Terminations for 16 AWG cable, matched to the equipment's screw terminals, leads or studs
  3. 1.25 A fuse and holder on the positive run
  4. Heat-shrink, strain relief and terminal boots sized to the cable

Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.

Installation notes

Before you install.

Open a question for model-specific guidance and sources.

Verified against the manufacturer's documentation (rev. MAN-000045 Rev 1), checked 2026-10-01. Manufacturer documentation →

Choose the single-colour X4 wiring

This entry covers the Ultra White X4, not the larger X8/X16 or an RGBW installation. The manual gives 0.8 A at 12 V and 0.4 A at 24 V, with 10 W maximum nominal consumption. The 12 W figure in the adjacent table column is a power-supply sizing allowance that includes reserve; it is not the light’s specified battery load. The catalog’s 0.8 A planning value is for nominal 12 V operation.

Fuse each light and seal every joint

For this single-colour version, connect red to switched positive and black to negative. Fit the specified 1.25 A fuse for each light; do not replace several individual fuses with one oversized branch fuse. Select the common supply and switch/relay for the combined load and route length using the manual’s cable tables. Keep the supplied cable and all joins supported and watertight, with the seal enclosing the outer sheath. Bare cable ends must never be left in bilge water, even while installation is unfinished.

Prepare the underwater mounting surface

Use a clean flat mounting surface and follow the hull-material instructions, including the appropriate isolation arrangement for conductive hulls. The manual illustrates mounting with the top of the light approximately 4–8 inches below the waterline and typical 2–3 foot spacing. Drill and seal the cable penetration as specified. Apply an unbroken marine-sealant barrier around the light and cable entrance; tighten the mounting screws by hand as directed rather than crushing the fitting with power tools.

Test before launching and inspect afterwards

Check polarity, individual fuses and switching before entering the water. Disconnect power before connecting or disconnecting light wiring. After launching, inspect the penetration and surrounding area immediately for leaks and repeat checks rather than leaving a new installation unattended. Keep the lens clean using the permitted methods; abrasive cleaning can damage its coating. Uneven apparent brightness can also result from depth, water clarity and bottom reflection, so verify wiring and mounting conditions before assuming the LED unit has failed.

Manual and scope

OceanLED installation manual, MAN-000045 Rev 1; p. 4 consumption/fuse table, pp. 5–10 placement and mounting, single-colour wiring p. 11, cable tables pp. 23–26. The original PDF is retained in the marine source ledger. The drawing represents the identified electrical interfaces; it does not simulate the equipment’s mechanical performance, radio signals or fluid system. Unpublished connector ampacity and startup current remain unspecified.

Technical reference

Specifications and terminal map.

Check the model, ratings and connection points against your own unit before choosing installation hardware.

Catalog specification

Single-colour X4 underwater light with 0.8 A at 12 V or 0.4 A at 24 V and 10 W maximum nominal power. The manual specifies a separate 1.25 A fuse for each light. Red is positive and black negative; the RGB/DMX wiring diagrams do not apply to this white version.

Nominal voltage
12 V
Compatible systems
12 V / 24 V
Rated power
10 W
Continuous draw
0.8 A

Terminal map

Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.

Red +

positive · input

—

Black −

negative · input

—

A dash means a current rating is not specified here.

Sources and sizing method

Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.

Example sizing. Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. Results use the example current and run length shown above. Set your actual equipment, lengths and installation conditions in Crimp before choosing hardware.

Read how the sizing works

Next step

Plan your installation with X4 Ultra White.

Open this example as a new project, or add this component to your existing diagram. Use your equipment and cable lengths to review the sizing.

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