In brief. DENALI Electronics builds a modular motorcycle lighting system: the light, wiring, and controller are purchased separately and combined. The range available from Endurrad includes the DL DataDim series (DL-2, DL-4, DL-6, DL-9), the D series (D2, D3, D4, D7, DM, DR1), the S series (S4), and DialDim and CANsmart controllers.
What to know before looking at prices: D-series lights are sold individually and without wiring. The DL series is available both individually and as a pair. A price that looks low is often the cost of half the system.
What is approved: DENALI lights are certified as an auxiliary high-beam (ECE R112 or R149 driving beam). They do not replace or supplement the low beam: they switch on with the motorcycle's original high beam.
What is the DENALI system
DENALI Electronics is a US manufacturer of motorcycle lighting and components. What sets it apart is not a single light, but the fact that all its products communicate with one another through a proprietary control protocol.
The system consists of three levels. The light, which comes in many sizes and power ratings. The wiring, which can be universal with a handlebar switch or specific to the motorcycle model. The controller, which is the most interesting part: DialDim in its universal version, or CANsmart when the motorcycle has a compatible data bus.
The technology that ties the system together is called DataDim. It uses three-wire wiring with a dedicated intensity-control line: this allows the light to change brightness automatically in response to the motorcycle's original high-beam control, without additional switches. This is why it makes sense to stay within the ecosystem once you have chosen it.
The range available from Endurrad
DL DataDim Series
This is the newest line and the one with the most complete technical documentation. The entire series states ECE R149 driving beam certification, IP68 and IP69K protection ratings, a 6000 K color temperature, 9-32 V DC voltage, and compliance with EMC R10, CISPR 25, CE, and UKCA. DrySeal construction robotically seals the lens and uses internal potting at the cable entry, which is where these products actually fail. The lenses are not interchangeable: the beam is chosen at purchase.
| Model | Pod dimensions | LED | Watts/light | Lumens/light | Lumens/pair | Beam | Price per unit / pair |
|---|---|---|---|---|---|---|---|
| DL-2 | 3 x 2 inches | 2 | 16 W | 1.700 | 3.400 | Visibility, wide flood | 106,00 € / 203,00 € |
| DL-4 | 3 x 3 inches | 4 | 32 W | 3.400 | 6.800 | Hybrid | 138,00 € / 267,00 € |
| DL-6 | 4.5 x 3 inches | 6 | 48 W | 5.100 | 10.200 | Hybrid | 187,00 € / 363,00 € |
| DL-9 | 4.5 x 4.5 inches | 9 | 72 W | 7.650 | 15.300 | Hybrid, 421 m per light | 235,00 € / 459,00 € |
The DL-2 is the only model in the series with a visibility-type beam: a wide flood at night, designed to appear as bright as possible to other drivers during the day. It is the choice for commuting or as the lower pair in a two-level setup. The DL-9 is the most powerful DENALI in the Endurrad lineup, with a claimed range of 560 meters as a pair, and it is also the largest: it only suits large adventure bikes.
D series and S series
These are the original lines, sold as individual units. On D2, D3, D4, and DM, the TriOptic system includes one spot lens installed and one flood lens supplied, so with a pair you can configure spot+spot, flood+flood, or one lens of each type. This is flexibility that the DL series does not offer.
| Model | Lumens/pair | Watts | Beam | IP | Certification | Price (per piece) |
|---|---|---|---|---|---|---|
| DM | 2.190 | n/a | Spot + flood TriOptic | n/a | E-Mark on flood lens | 165,00 € |
| S4 | 6.132 | n/a | Hybrid, sealed lens | n/a | Not declared | 171,00 € |
| D2 | 2.190 | n/a | Spot 160 m / flood 50 m | n/a | E-Mark on flood lens | 219,00 € |
| D3 fog light | 5.600 | 40 W | Fog light | IP67 | To be confirmed | 235,00 € |
| DR1 | n/a | n/a | Narrow spot, approximately 10 degrees | IP68 | Not declared | 240,00 € |
| D3 | 4.200 | 36 W | Spot or hybrid, lenses included | IP67 | SAE J581 + ECE R112 | 248,00 € |
| D4 | 8.760 | n/a | Hybrid, 2 flood + 2 spot | n/a | E-Mark on spot lens | 291,00 € |
| D7 | 7.665 | 70 W | Full spot, over 366 m | IP67 | E-Mark on spot lens | 395,00 € |
The D3 deserves a note: it is the only one in the range with documented dual certification, a hybrid SAE/DOT J581 and ECE R112 lens, and an ECE-only spot lens because it is too powerful for US regulations. Both lenses are included.
DialDim and CANsmart: the part that makes the difference
Buying DENALI lights without the controller means using half the product. The controller unlocks the functions that make you choose this brand.
The universal DialDim, €331.00, lets you switch on and independently adjust two groups of lights from a single knob. It adds synchronization with the original high beam, a horn-linked strobe, automatic turn-signal shutoff, an adjustable electronic fuse, and a battery voltmeter function.
The CANsmart is the motorcycle-specific version for bikes with a compatible data bus, typically BMW: it connects to the diagnostic port and lets you control the lights using the original handlebar buttons, without cutting a single wire.
Endurrad also offers complete packages for BMW GS models that include lights, dedicated mounts, and a CANsmart under a single product code: from €1,006.00 for the R 1250 GS with D4 to €1,585.00 for the R 1300 GS Adventure with D7 PRO. The D7 PRO is available only in these kits: seven 14 W Cree XML3 LEDs per pod, 98 W power consumption, 11,900 raw lumens per pod, IP68 and IP69K, an E-Mark ECE R112-approved spot lens, with a dual independent circuit that allows the central optic to be used as a DRL or as a full-power flood.
When DENALI is the right choice, and when it isn't
DENALI makes sense if you're building a layered system with multiple pairs of lights serving different functions, if you want interchangeable lenses to change the beam according to the season, if you have or want a CANsmart, or if you need the highest available protection rating with the DL series.
DENALI is not the right choice if you're looking for an ECE-approved low beam. This is the brand's structural limitation in the European context: its lights are certified as auxiliary high beams, so they work in pairs with the original high beam and switch off with it. If your problem is getting more useful light even when you encounter oncoming traffic, the answer is a light with an ECE R149-approved low beam, such as the L series from LOBOO.
It's not the right choice either if budget is your main constraint and you want a complete system right away: two D7s plus wiring cost over €800, while a pair of ECE-approved LOBOO lights with wiring included starts at €261.00.
Want to configure a DENALI system?
Tell us the motorcycle's make, model, and year, and we'll tell you which light, wiring harness, and controller you really need, helping you avoid components you would end up not using.
Further reading: best motorcycle auxiliary lights 2026 · mounts and brackets for auxiliary lights · motorcycle lighting guide


























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