Show me your front light(s)

General Discussion about electric bicycles.
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amberwolf   100 GW

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Re: Show me your front light(s)

Post by amberwolf » Oct 04 2019 11:15pm

I did that for an old 1980s car headlight once, on an early version of the trike. (and reused it for a similar style look on the Kia ligth for a short time, but don't need it on that one).

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jPas   100 µW

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Re: Show me your front light(s)

Post by jPas » Oct 07 2019 5:56pm

Just upgraded my front light recently to the following from Grin:

Roxim X4 Ebike Light
https://www.ebikes.ca/shop/electric-bic ... light.html

It has StVZO Compliant Optics (German) so it has the proper cut-off to avoid blinding people. Powers off the CA3 extra accessory plug - although I have noticed it sometimes reboots the CA3 when I turn the light on.

This one is nice and compact as well and blends in fairly well with my MTB ebike.

Don't have a pic of it yet, but I found the following test video of the Roxim X4 and some other lights pretty good when researching it:
https://www.youtube.com/watch?v=wGEOzIF7RI0

There was one or two other more expensive lights like the M99 PRO, but I couldn't justify the cost.. :(

I am pairing this light with my usb chargable 800~ lumen offroad bike light which is usually on flash, along with a less bright wide angle front light set to flash. If I need high-beam I can just turn the offroad light on to steady. I try to turn the flasher off on bike paths etc to avoid blinding fellow pedestrians.

I find a Monkeylectric M232 also helps with side visibility when you ride all year around in the darker winter months.

It's unfortunate that StVZO type optics aren't mandatory for bike lights as it seems like more recently bike lights have gotten brighter, yet without that cut off it is quite dazzling when you're on the receiving end.

Cheers

district9prawn   100 W

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Re: Show me your front light(s)

Post by district9prawn » Oct 10 2019 5:45am

jPas wrote:
Oct 07 2019 5:56pm
Just upgraded my front light recently to the following from Grin:

Roxim X4 Ebike Light
https://www.ebikes.ca/shop/electric-bic ... light.html
I've been using that Roxim one for about two years now. Not the brightest light out there but a very sensible output for urban riding.

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Neu 8057 6kW left hand drive hardtail with 18 fet Vesc: viewtopic.php?f=6&t=96754

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Alan B   100 GW

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Re: Show me your front light(s)

Post by Alan B » Oct 10 2019 7:41am

How do you like the light pattern? Does it do a good job for you in fully dark situations at say 28 mph?

Would a second one (800 lumens total) help?

district9prawn   100 W

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Re: Show me your front light(s)

Post by district9prawn » Oct 10 2019 6:43pm

Alan B wrote:
Oct 10 2019 7:41am
How do you like the light pattern? Does it do a good job for you in fully dark situations at say 28 mph?

Would a second one (800 lumens total) help?
In complete darkness I'm not confident I could avoid all potholes etc at 28mph. More comfortable at 20 mph. Similar situation for off road. I'm sure a second light would do the trick.

When I need more light I use a helmet one that I can point around.
Neu 8057 6kW left hand drive hardtail with 18 fet Vesc: viewtopic.php?f=6&t=96754

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Alan B   100 GW

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Re: Show me your front light(s)

Post by Alan B » Oct 10 2019 9:30pm

One or two of the 1000 lumen LED headlights without the line would make good high beam and offroad lights, these patterned lights are really optimized for low beam type performance.

cooking monkey   100 mW

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Re: Show me your front light(s)

Post by cooking monkey » Oct 10 2019 9:37pm

I think the specs on it was 800 lumen ,
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I am very happy with it, dont know how I lived with the factory light!
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pullin-gs   100 W

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Re: Show me your front light(s)

Post by pullin-gs » Oct 13 2019 12:52pm

E-HP wrote:
Oct 02 2019 1:29pm
I'm using this light:
https://www.ebay.com/itm/Universal-12V- ... 0290.m3507

Beam is decent. Hot spot is around 150 ft, the sign at the end of the street is around 200 ft out.

headlight sm.jpg

I have two additional lights I mount on the accessory bar for trail riding, that can point slightly outwards for a wider angle.
I was going to get this until I found out it does not have a flash mode. :-(

LipoRider   1 mW

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Re: Show me your front light(s)

Post by LipoRider » Oct 14 2019 2:36am

My current front lights have two parts:
Front LED Lights.jpg
Lights closeup
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My primary is a 20W motorcycle "passing light" as the main headlight. Fully weather proof and tuned optics makes beam just right for riding on the streets. This 20W light accepts up amazingly wide 12VDC to 80VDC input range so switch it directly off my bike's 18s 75V battery via a relay.

My secondary front light is a 12VDC 5W beam style DRL light with crystal white sharp piercing omnidirectional light. You can get this on eBay for a few dollars literally for a pair of them. I consider my DRL an absolute necessity for both day and night riding. I always have it on and never without it! Recently, I completed a project to add a "random flicker" to my DRL to increase conspicuousness even more. I used a $4 Arduino microcontroller with some of my own simple code combined with a MOSFET to allow the Arduino's low 5VDC digital signal to modulate the 12VDC DRL. It works wonders!
My Video2.gif
DRL flicker front view
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My Video4.gif
DRL flicker top view
My Video4.gif (482.76 KiB) Viewed 1143 times
My own experience is that a "random" flicker is more noticeable than a common fixed sequential pattern. A fixed sequential pattern can induce target fixation which is a criticism leveled against the commercial motorcycle light modulators. I agree. Therefore, I chose to implement algorithm that flickers the LED randomly like a candle in the breeze. The algorithm also includes a small chance that the DRL will turn off briefly for some 100ms to 150ms (also randomized) like its a "wink" which helps to break target fixation. The Arduino customized solution allows me to implement an infinite combination of patterns and I will end up playing with different patterns at anytime later.

I'm planning to add a photosensor that will allow the Arduino to adjust the DRL flickering pattern based on ambient or oncoming light. Also, I will add a momentary switch will will "burst" the light with a constant "high alert" pattern for some 7 seconds. I will hit this momentary switch whenever I'm approaching a situation where I feel the other drivers may not notice me approaching. Such as cars pulling out of a parking lot, cars I feel are going to cut me off in a traffic lane, cars with an inattentive driver texting at a green light, etc.

Street riding views from a GoPro Hero 7:
Front Illumination 001.jpg
Street riding view
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Front Illumination 002.jpg
Street riding view
Front Illumination 002.jpg (457.37 KiB) Viewed 1143 times
Front Illumination 003.jpg
Street riding view
Front Illumination 003.jpg (400.17 KiB) Viewed 1143 times

MikeSSS   100 W

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Re: Show me your front light(s)

Post by MikeSSS » Oct 21 2019 7:07am

Great thread, the info about anti-glare cutoff is very valuable.

My Cygolite has been very good but oncoming traffic is bothered by it. Fenix bike lights have the top of the beam cutoff feature, a Fenix will be my next light.

Thanks to all who posted in this thread.

Mike S

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Re: Show me your front light(s)

Post by aroundqube » Oct 22 2019 11:27pm

LeftieBiker wrote:
Oct 02 2019 6:13pm
Can anyone link a good light that will work well on 48-54 volts, has a high and low beam, and a handlebar-mount switch for both power and beam?
8v to 48V , high low switch , 80 / 120 LUX , 25 K/ph ? https://www.bumm.de/en/products/e-bike- ... 65-01.html?

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Re: Show me your front light(s)

Post by LeftieBiker » Oct 25 2019 1:19am

aroundqube wrote:
Oct 22 2019 11:27pm
LeftieBiker wrote:
Oct 02 2019 6:13pm
Can anyone link a good light that will work well on 48-54 volts, has a high and low beam, and a handlebar-mount switch for both power and beam?
8v to 48V , high low switch , 80 / 120 LUX , 25 K/ph ? https://www.bumm.de/en/products/e-bike- ... 65-01.html?
That looks great, but with an upper cutoff of 48 volts, my "48 volt" bike, with a typical voltage of 47-54.5 volts, would damage it unless the battery was low... This would be great for 24 and 36 volt bikes.

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Re: Show me your front light(s)

Post by matmaxgeds » Oct 25 2019 4:00am

Next light up in their range is up to 60v, 150 lux, and with beam cutoff but expensive (although with deals can find down to €90 sometimes): https://www.bumm.de/en/products/e-bike- ... s7-01.html?

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Re: Show me your front light(s)

Post by LeftieBiker » Oct 26 2019 5:21pm

matmaxgeds wrote:
Oct 25 2019 4:00am
Next light up in their range is up to 60v, 150 lux, and with beam cutoff but expensive (although with deals can find down to €90 sometimes): https://www.bumm.de/en/products/e-bike- ... s7-01.html?

<Sigh> and that one is essentially a spot light. Oh well, thanks for trying.

matmaxgeds   10 mW

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Re: Show me your front light(s)

Post by matmaxgeds » Oct 27 2019 6:21am

These are lower power but claim a beam cut-off and up to 60v. Anyone tried one? https://www.aliexpress.com/item/32995200889.html

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Re: Show me your front light(s)

Post by wturber » Oct 27 2019 11:50am

LeftieBiker wrote:
Oct 26 2019 5:21pm
<Sigh> and that one is essentially a spot light. Oh well, thanks for trying.
Step down converters are small and inexpensive. They open up a wide range of 12v (or other voltage) options.
"Commuter - DC Booster"
Iron Horse 3.0 hardtail - 48V / 1000W / 470rpm generic Chinese DD Hub motor (ebay)
8 x 36v 4.3ah 10s 2P battery packs - 1500W 30A DC Boost Converter delivers 54v and about 1000 watts peak
53T/42T Sakae Road cranks - 30mph+ on flats
viewtopic.php?f=2&t=90369

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Re: Show me your front light(s)

Post by Balmorhea » Oct 27 2019 12:26pm

LeftieBiker wrote:
Oct 26 2019 5:21pm
matmaxgeds wrote:
Oct 25 2019 4:00am
Next light up in their range is up to 60v, 150 lux, and with beam cutoff but expensive (although with deals can find down to €90 sometimes): https://www.bumm.de/en/products/e-bike- ... s7-01.html?

<Sigh> and that one is essentially a spot light. Oh well, thanks for trying.
I don't think you appreciate how good the beam is on those. Busch und Mueller lights are too expensive for me, but their beam pattern is the best I've seen. Better than anything I've had on a motorcycle.

I've used both Fresnel overlays and sanding the lens face to broaden and soften the beam of a really spotlight-like LED before. So even those can be useful if the price and performance are right.

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