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DENALI S4 Hi-Power Quad LED Light Kit

  • Model: TT-DNL.S4.10000
  • Manufactured by: DENALI Electronics

Sale: 342,76€
-10% discount
(including IVA)

A generic image delivery 3-7 working days (mainland Spain)

The DENALI S4 quad LED Lights are designed as a more general-use version of the professional D4 High Power quad LED lights.
The S4 lights are smaller and lighter than the D4 pods and so can be installed in less-secure locations such as the mudguards. They have a non-removable, fixed quad lens that provides two spot beams and two wide flood beams combined, to offer a hybrid pattern.

The lights are built from two tough metal housings equipped with eight high-power LEDs. The housings are made from aluminium with a black powder-coated finish and have cooling fins cast into the body for maximum heat dissipation. The light output is automatically modified to prevent over-heating in the most extreme conditions and so ensure the maximum life from the components.

The lights are water-proofed to the IP67 standard.

DENALI Lights - EU Compliance

DENALI lights were originally designed for the USA market. Subsequently, due to demand, they were imported and marketed to the rest of the world, including the EU. EU rules are extremely restrictive and so the certifications had to be done in accordance with the performance of each light and not the intended use. Consequently the certifications are not realistically useable to homologate the products in Spain, apart from the D3 fog light which can be homologated.

Nonetheless DENALI continue to be in demand in Spain due to their outstanding quality.

Please note there is NO EU category for "auxiliary lights". Additional front-facing lights can only be homologated as "fog lights".

"Headlight" replacement means that
one additional light may be used with the existing main beam light
but two lights may NOT be used with the existing main beam light: in this case the function of the original main beam must be anulled and the two lights replace the original.

The EU compliance (E-Mark approval/homologation) documentation for all products can be downloaded from the DENALI website here.

D2 Lights
The D2s are not sufficiently powerful to be classed as replacements for the main beam headlamp and are too powerful to be classed as fog lamps, so were certified as “AR-Reversing Lamps” in order to have some certification, rather than none at all.

D3 Driving Lights
Certified as a R-main beam headlamp replacement.

D3 Fog Lights
Certified as fog lights so can be homologated in Spain.

D4 Lights
Certified as a R-main beam headlamp replacement.

D7 Lights
Certified as a R-main beam headlamp replacement.

DM Lights
The DMs are not sufficiently powerful to be classed as replacements for the main headlamp and are too powerful to be classed as fog lamps, so were certified as “AR-Reversing Lamps” in order to have some certification, rather than none at all.

DR1 Lights
Certified as a R-main beam headlamp replacement.

S4 Lights
Not certified.

Beam Pattern

DENALI S4 True-Hybrid beam pattern

How are the lights controlled?

The lights are controlled by the high-quality, waterproof On/Off switch included in the kit.
It is also possible to use the optional DataDim plug-in controller module to control the light's intensity automatically between half/full power in sync with the vehicle’s OEM headlight (low/high-beam).

NOTE: in the case of the bikes's original headlight being LED, a upgrade to dual intensity control using the DataDim may not work.
In this case, a three-position switch is normally required to replace the two-position switch.
But this is not possible with the S4 standard harness as the switch is integrated into the harness. Consequently, customers wishing to use the S4 lights with dual intensity should purchase two S4 lights (not the kit) and a Premium harness kit.


The S4 lights have a M8 mounting bolt fitted to a moveable hinge.

They can be fitted to crash bars, mudguards or any other types of robust brackets. with a M8 hole.

DENALI offer several universal brackets and many bike-specific mounting brackets. Information about these brackets can be found on the Twisted Throttle website here.

S4 Installation Instructions: English

Video: Installation of similar lights (DENALI D4) on a Suzuki V-Strom

Kit Contents

  • S4 LED light housings x 2
  • HotSwap™ high-quality standard (NOT premium) wiring harness with single-intensity relay and integrated on-off switch x 1


  • LED Types: 7W Cree XPL HI LED x 8
  • Current Consumption: 4.6 amps
  • Beam Reach: 165m/540 feet
  • Flood Beam Width: 30m/100 feet
  • Total Light Output: 7665 Lumens
  • Dimensions: 7x7x4.5cm (2.75x2.75x1.75 inches)
  • Weight: 400g per light pod

Supports for DENALI lights: see the DENALI website for options.

DENALI 2.0 Lights - Common Characteristics

High Power LEDs - HiDrive™

DENALI DR1 LED closeup

The LEDs used in all DENALI 2.0 systems are the latest generation "Hi-Intensity" LEDs from Cree.

Compared to the DENALI 1.0 series, these produce 20% more light (lumens) for the same low current consumption.

Advanced Thermal Management - LiveActive™

DENALI DR4 heatsinks

LEDs last longer and output more light when they are kept cool. The DENALI 2.0 lights have advanced software control "LiveActive"™ integrated into the LEDs and external oversize heatsinks cast into the housing to maximise the efficiency minute-by-minute and ensure the longest lifetime.

Multi-Beam Lens system - TriOptic™

DENALI beam comparison

All kits include two spot lenses and two flood lenses to allow a choice of three lighting patterns. Use two spot lenses for the maximum forward reach, two elliptical floods for maximum side spread, or one of each for a combined effect.

In addition to providing three beam options in one kit, the second set of spot-only lenses are CE-certified. This ensures you can stay street-legal on-road while maintaining the option for maximum distance off-road.

Fully Waterproof Construction - DrySeal™

DENALI D4 waterproof housing

The seals between the components of the housings are moulded silicon and the cable entry points are potted in epoxy to ensure the housings are 100% watertight even when submerged. The control switches (On/Off and Off/Low/High) are also 100% waterproof.

Corrosion-Proof Bezels - Impact PC™

DENALI D2 bezel

The front bezels always bear the brunt of stone damage and so the coated aluminium of the main housing is not always an appropriate material. The housing bezels are moulded in 100% polycarbonate (DR2, DM and DR1 only/not D4) for the best possible resistance to stone damage, providing a tough surface that does not rust or fade with the sun.

Chromed Reflectors

DENALI DM closeup

The internal LED holders are plated in high reflective chrome to focus all the generated light forward and to better match the bike's original headlights

Low-profile mounts and stainless-steel fixings

DENALI D2 bracket

The hinged mounts are designed to reduce the installed profile to the minimum possible while maintaining high strength. All screws and nuts are manufactured in stainless-steel.

Waterproof Switch – "DrySeal"™

DENALI waterproof switches

All DENALI switches are completely waterproof to ensure a long lifetime in harsh, outdoor conditions. The switches can be mounted on a flat surface or a handlebar (22mm/25mm).

HotSwap™ Wiring Harness

DENALI DataDim relays

The cabling uses high-quality waterproof components and allows a simple upgrade to dual intensity LEDs by the use of the DataDim™ Controller Relay (available here).

Optional Upgrades

DataDim™ Controller

DENALI DataDim relay

This relay allows the lights to be switched between Off/Low Intensity/High Intensity.

The lights are switched Off/On by the standard switch included in this kit.
The Low/High intensity is controlled by the original main beam switch of the motorcycle via a connection to the original main beam circuit.

The DataDim™ controller relay (available here) replaces the Single-Intensity relay that is included in the kit.

DataDim™ Controller + Hi/Low/Off Switch

DENALI DataDim relay and Hi-Low-Off switch

This option provides full control of the lights independently of the main beam control.

In some motorcycles it is impossible to use the main beam control and so this manually-operated switch is required.
This option replaces the standard Single-Intensity relay with a DataDim relay (available here) and replaces the standard Off/On switch with the Off/Low/High switch (available here).

Switch Eliminator

DENALI Lights Switch Eliminator

This allows the lights to automatically switch on with the ignition circuit, so are always on when riding. This option replaces the standard On/Off switch and is available here.

Harness Extension

DENALI harness extension cable

This cable extends the length of the standard lighting harness by 61cm (24") and features the same high-quality waterproof connectors as the original DENALI cables. It is available here.

Y-Splitter Kit

DENALI harness Y-Splitter cable

If you wish to add one or two more lights to your existing DENALI system, the "Y" splitter kit makes that very easy. It is available here.

Auxiliary LED Brake light

DENALI B6 Auxiliary Brake Light

The B6 LED auxiliary brake light is a great safety addition to your existing brake light to wake up those cage-drivers! The unit comprises six 0.5W LEDs in a very compact, low-profile housing and is available here.

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DENALI S4 Hi-Power Quad LED Light Kit

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