Additional lights for Strada Velomobile

pe2er

Enlightened
Joined
Dec 22, 2007
Messages
380
Location
Europe - Holland - Almere
I Have recently upgraded my Alleweder Velomobile to a Strada VM. This means another chance at improving velomobile lighting :D



This is my Strada, looking at it from an oncoming traffic point of view. What you see is a Lumotec BM IQ Cyo mounted in the nose.

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Because this light is mounted fairly close to ground, I also wear a light on my helmet, same light I used in my Alleweder

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Not entirely satisfied with the visibility at night, I decided to add two additional lights mounted to the mirror. For this, I bought two identical Romisen flashlights with XRE-Q5 emitter (the light on top is only for comparison)

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Romisen RC-A5-Q5 Cree Q5-WC 3-Mode 180-Lumen LED Flashlight - Black (1*AA/1*16340)

These lights turned out to be 'crappy', but since I only needed the light head they suffice as a donor. Here is a trial to see what the effect is, using the flashlights on internal 14500 battery.

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For oncoming traffic, the width of the Strada is more obvious:

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Here is a picture of the light from within the IQ Cyo main beam:

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Looks like a lot of light here inside the living, but it will be more reasonable on dark asphalt...



So I hacked the flashlights to shorten the body and remove the 1.2 ... 4.2Volt driver. Instead I used an MR-16 size 1 Watt driver from DealExtreme to match my 12 VDC ships battery.

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Here are some shots taken with a Sony Cybershot DSC-W380. Camera settings were f/2,4, ISO-80, 2 seconds.



This picture shows the improvement of the side visibility.

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The following pictures were taken with the camera on a small tripod in between the two mirrors. First one showing only the original IQ Cyo.

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IQ Cyo in combination with the two new lights.

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IQ Cyo switched off.

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The camera blends all three lights into one. With the naked eye, the lights are visible as three individual light sources :)

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So, I am quite happy with the improved visibility and illumination of the road edge.



I Temporarily connected the lights to the on-board electrical system and included a switch to dim the new lights. Dimmed, they are about as bright as the white 5mm LEDs mounted in the nose as 'Daytime Running Lights' just above the IQ Cyo.

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Will do some more testing to determine if the lights remain as is, or build a variable dimming unit (with PWM?).
 
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