Busch & Müller: Lumotec IQ2 Luxos

New wheels fitted and the hub connected to a B&M Luxos front light.  While assembling the wheels and lights I thought it would be nice to check the weight and see if I was gaining or losing in a significant manner.

This shows that for daytime running my bicycle is now 418g heavier as the front light is not removable.  Even for a short ride to the pub, when I don't need backup batteries, my new system is still heavier.  However, when running through the night I have a small improvement in overall weight.  In terms of looks, the light fits with the overall appearance of the Spa Cycles Tourer very well.

The next question is whether there are performance gains in lighting, and hopefully not just self-delusional improvements.  I like the comparison of published running times.  I use rechargeable nickel metal hydride AA batteries and have a 2500mA set from Energizer.  This table is not based on experience, it is just from their websites and for illustration.  My personal experience with the Dinotte is that the low power is fine for an 8 hour night time ride even with occasional use of the high beam on twisty dark descents.  If I use the high beam too often I have to swap the batteries during the night.

Run time comparisons were always going to be a winner for the dynamo powered light, so the final question is, "How does the light compare at night while cycling?"  A trip to the pub was called for, and suitable refreshed I headed out into the dark lanes of Teesside with my Finepix F660 compact camera.

Clear sky except for some very high level wispy clouds
and the orange coloured moon hanging low

The unlit country lane I used for the test

Next a series of images captured while stationary taken with the camera hand-held at chest height.

Hope Vision One (which their website calls the 'old version')
This was on the medium power setting, fixed to the bicycle of a friend who was with me.
This mode will last about 9 hours.

Dinotte XML-AA
On Low Power, which is my normal running mode and lasts up to 8 hours

Dinotte XML-AA
On Full Power, which I use on fast descents when I need to spot danger and will last
a maximum of 2 hours, but also reduces the running time of the low power mode.

Busch & Müller Lumotec IQ2 Luxos
Stationary - Parking Light

Busch & Müller Lumotec IQ2 Luxos
Stationary - Full Beam

Then I tried to capture a the Dinotte and the Luxos while moving.

Dinotte XML-AA
Taken while moving and set to my normal running mode, low power

Dinotte XML-AA
Taken while moving and set to full power

Busch & Müller Lumotec IQ2 Luxos
Moving in normal operation

While out cycling around the lanes and trying to take these photos, the Busch & Müller Luxos gave a level of lighting that neither the Hope nor the Dinotte could match. Both the Hope and the Dinotte were excellent torches. Super bright, but not particularly focussed as transportation lights. They flood the world around them with light in an unashamed manner. The Luxos doesn't look very bright initially, but while riding I noticed that the light was perfectly designed for travelling and showing me the road ahead. The verge is lit, I can read road signs, and yet I had a feeling I wasn't blinding oncoming drivers. I stopped to capture some images from the front. Again this wasn't scientific; I simply set the lights the way I would use them, and walked down the road to the same point each time.

Dinotte XML-AA
Full Power - not used when there is an oncoming car

Dinotte XML-AA
Low Power - the normal setting for cycling at night

Busch & Müller Lumotec IQ2 Luxos
Full Beam Stationary (not the parking light)

In conclusion I'm delighted with my new Busch & Muller Luxos dynamo light and the Shimano hub dynamo.  The lighting is better than the Dinotte on full power and will last through the night.  It is less of a problem for oncoming traffic too.  I really liked my Dinotte XML-AA and it has been brilliant on all my overnight rides, but I feel like I now have something purpose built for the job - the right tools.  Just for reference, I haven't chosen a dynamo rear light yet.  I might.  But at the moment I'm enjoying the warm light given off by the fibre flare I use.

Fibre flare attached to Carradice Barley

Finally, the view of the handlebars at night

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