HEX ezCAN for HONDA BIKES

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• 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
• 2 GB RAM
• One USB port
• 20MB available hard drive space
• Internet access (for registration & upgrades)
• Display with minimum 1366×768 resolution
• Windows 7/8/8.1/10, or
  MacOS 10.12 or higher

For ezCAN units with 3-wire connectors:

• Solid colour (red/orange/yellow/white) to Denali light’s red wire
• Black to Denali light’s black wire
• Dual colour wire (red/white or white/black) to Denali light’s yellow or white wire

For ezCAN units with 2-wire connectors (note that you may experience flicker at low-intensity settings):

• Solid colour (red/orange/yellow/white) to Denali light’s red wire
• Black to Denali light’s black wire
• Leave Denali light’s yellow or white wire unconnected

• There are multiple ways of connecting your Skene lights and IQ-260 controller to the ezCAN, depending on which features you want.
  • You can connect the P3 lights directly to the brake output of the ezCAN and leave the Skene brake light controller off the bike.
  • If you want the Skene controller features you can power the controller from the ezCAN accessory output and use the ezCAN brake output to drive the Skene controller’s brake input. Using the Skene instructions at https://www.skenelights.com/installation-p3, connect the wires and configure the ezCAN as follows:
    • ezCAN accessory output (white) to Skene Switched +12V (red)
    • ezCAN brake output (yellow) to Skene Brake Light (white)
    • ezCAN accessory or brake ground (black) to Skene Ground (black)
    • Configure the ezCAN to use channel configuration 1, 3 or 4 and set the tail/rear light brightness to 0% and the brake light brightness to 100%. Set the ezCAN brake to “No flashing”.
• See the Skene FAQ for more options and information, www.skenelights.com/faq-1

There are multiple ways of connecting your Admore light to the ezCAN. To make full use of the features of the Admore light connect the wires and configure the ezCAN as follows:

• ezCAN accessory output (white) to Admore Red (switched 12V source)
• ezCAN brake output (yellow) to Admore Blue (brake input)
• ezCAN accessory or brake ground (black) to Admore Black (ground)
• Admore green and yellow (right/left turn signal inputs) can be tapped directly into the turn signal wires of the bike, as per the Admore instructions
• Configure the ezCAN to use channel configuration 1, 3 or 4 and set the tail/rear light brightness to 0% and the brake light brightness to 100%. Set the ezCAN brake to “No flashing”.

Yes, you can. We have evaluated and tested a set of Clearwater Krista lights using an Accelerated Ageing Test which is equivalent to 7+ years worth of riding (see the details of our evaluation and test below). We believe that the Clearwater lights will work reliably with the HEX ezCAN.

Unfortunately we have been getting reports that Clearwater Lights has been telling their customers that their lights should not be used in conjunction with an ezCAN as it would seem to be working initially, but then eventually the ezCAN would cause their lights to fail.

Clearwater Lights, like many other high-end LED lights, use a LED controller chip made by Linear Technology (LT) that has an additional “brightness” control pin. Many other good quality LED lights use the same (or similar) controller chip but ignore the brightness pin on the controller chip. This is not out of spec and according to the datasheet of the controller, is a very real and valid implementation of the design. Further, the frequency of the internal current control loop is thousands of multiples higher than the frequency that the HEX ezCAN uses to PWM the power to the lights. That means that to the internal LED and LED controller chip this low frequency is as good as ignorable.

Why do LED lights fail?
Failure of electronic components is a reality. Assuming that the LEDs are supplied with the correct voltage and not over-driven, the two most common reasons for failure are the use of inferior components or an inferior design that unnecessarily stresses the electronic components to the point of eventual failure. Very typical are failures of the power capacitors that have to deal with the continuous inrush and ripple currents.

We have a set of Kristas and have evaluated the Clearwater Lights design. They manufacture very high quality lights which are well respected in the biking community and we saw no trace of the use of inferior components.

The opinion of a specialist
We contacted one of the LT Field Application Engineers and ran this by him, his response was: “I agree with you, there is no issue with these parts. They are designed to work in a switching environment and it does not matter how you switch them as long as the forward or reverse breakdown voltage ratings of them are not exceeded. They are diodes afterall so pretty resilient. There can be voltage spikes when switching, due to inductive parasitics etc which could overvoltage them but that’s an OV problem, not a susceptibility to switching problem.”

We designed a Test
What we did was to set up an Accelerated Ageing Test. The average mileage seems to be around 2500km/year. In order to work with a worst case scenario, we used 10,000km. Then we made an assumption of the speed that the rider averages over those 10,000km and we chose 60km/h. That means after 7 days of continuous use that would equate to the same ON-time of a bike that did 10,000km travelling at an average speed of 60km/h. Now leave them ON for 35 days and you have an accelerated test that equates to 5 years worth of “normal” use.

We hear you saying but I ride more or less than that and my average speed is X. Well, now that you know how we calculated it, just plug in your own numbers – if you drive only 5,000km in a year, then this test equates to you using your lights for 10 years!

Naturally you need to pay good attention to the conditions too. Like any good LED light, the Clearwater lights have temperature compensation. That means the lights will decrease their current draw in order to minimise the power dissipation. In order to create the worst case scenario test, we need to run the lights for the duration of the complete test and the maximum power dissipation. How do we do that? We set the ezCAN brightness to 90% (100% would not have any switching) and then we introduce just the right amount of airflow to keep the lights cooled to remain working at their maximum power level (and we monitor this at a at least twice daily during the test).

The Test results
The lights passed the 5-year Accelerated Ageing Test with flying colours! As a matter of fact, we left the test running, and at the time of this writing they were working perfectly after 1000+ continuous hours of being powered by the HEX ezCAN, which equates to over 7+ years in the Accelerated Ageing Test.

To conclude we have explained why technically the HEX ezCAN can be used with Clearwater Lights.