Herrmans H-one S

Getest: 60/75 lux versie sinds 23 aug. 2012, 75/95 lux versie sind 2 jan. 2013.

Specificaties:

Boxed Herrmans H-Diver, front view Boxed Herrmans H-Diver, rear view Boxed Herrmans H-Diver, rear view

StVZO goedkeuring: Versie 1: K781 & K???, Versie 2: K781 & K914
Massa: ca. 101 g voor de lampkop + kabel, ca. 120 g met RVS lamphaak/bout/moer.
Grootte: breedte: ca. 52,8 mm, hoogte: ca. 103,2 mm, lengte ca. 44,2 mm.
LED: ?
Montage breedte: ca. 20.3 mm (dit is niet standaard).
Aan/uit: Automatische aan/uit die je handmatig kan uitschakelen. Er is ook een altijd aan versie voor banddynamo (die kun je natuurlijk ook met een naafdynamo gebruiken als het je niet uitmaakt dat de lamp altijd aan is tijdens het fietsen).
Standlicht: Ja.
Prijs: ca. € 60,- versie met standlicht en auto aan/uit, ca. €55,- voor de versie voor gewone dynamo (altijd aan)

Plaatjes:

Herrmans H-One S Herrmans H-One S Herrmans H-One S Herrmans H-One S

Herrmans H-One S Herrmans H-One S Herrmans H-One S Herrmans H-One S

Ervaringen, 60/75 lux versie:

De H-one S heeft een behuizing die vergelijkbaar in vorm is met de Edelux wanneer je daar de retroreflector op monteert. De lamp is redelijk zwaar, ca. 120g.

Voor mijn test schreef ik dit als opmerking in de lijst van lampen die mogelijk interessant zijn:

"Herrmans H-One S, 60 lux, geïntegreerde reflector (tamelijk goedkoop maar ongelofelijk lelijk zoals de IQ Fly)".

Na de test en montage op de fiets vindt ik het met die lelijkheid wel meevallen ;-)

The housing is pretty sturdy, it weighs quite a bit at 120g but with a short mounting bracket it should not vibrate. And indeed, it didn't vibrate in my tests.

montage materialen zijn RVS, mooi. Er is een aparte plastic houder voor Suntour vorken. De RVS lamphaak vind ik alleen niet zo goed omdat je de bout op de vorkkroon niet gemakkelijk op het einde houdt, bij het vastzetten had ik steeds dat die omhoog (of beter de lamphaak omlaag) ging.

De vorm van de lichtbundel bevalt me niet. Wat artefacten bij het voorwiel, die zijn geen probleem, maar het zou beter kunnen. Erger is de grote hotspot op ca. 10-20 m. Het is eigenlijk een 'hot cone' dus het gebied met hogere intensiteit lijkt op een kegelsnede. Dit geeft een vergelijkbare afleiding als bij de Cyo R/Cyo RT. Ook bevalt me het grote donkere gat van het voorwiel tot waar de lichtbundel start niet en de matige verlichting van het wegdek op 30-40 m die je krijgt als je de lamp zo richt dat tegemoetkomend verkeer niet verblind wordt. De beste verlichting van het wegdek krijg je als je de lamp hoog richt zodat tegemoetkomend verkeer verblindt wordt. Nog te vertalen naar NL: This means the high lux rating is not maintained over a large distance, and the section of road close to the cyclist is too bright. This means people will tend to aim this lamp too high which means the beam shape for this reason alone is already poor.

Nog te vertalen naar NL: Someone from Taiwan mentioned that the squarish section of the beam is actually good for safety in cities. This section, because it's got such strict edges and because it's pretty bright, gets noticed by motorists even if they can't see the bike yet (blind corner).

Auto aan/uit: Nog te testen voor aan/uit flikkeren bij schemering. De lichtsensor bevindt zich aan de achterkant, en zou niet door koplampen van auto's beinvloedt moeten worden.

Sterkte van het standlicht: Ervaringen volgen nog.

Nog te vertalen naar NL: This lamp has daylight running lights, and thankfully Herrmans made the light of those LEDs diffuse with the front glass (plastic) of the lamp that's matte before those LEDs. They are quite well visible and at least when running from the standlight power, they are not that annoying. They are not as good as a taillamp type running light would be (see my suggestion about the best daylight running light which would be similar to the light that a good taillamp produces).

Comparison with the Saferide 60: The Saferide 60 is much more pleasant to use, has similar throw, and not the strong hotspot, or rather 'hot cone'. The beam shape has a lot of the same features, such as a block of light before the main beam, then a sort of cone and a wider illumination that's noticeably less bright. With the Herrmans H-one S the block of light before the main beam has very strict edges and corners, this gives the same problem as with the Cyo RT (it attracts your attention). Also the cone is much brighter than the wider part of the beam which means your attention also goes to the hotspot/hotcone, instead of what is on the road. The Saferide 60, because it also has a bit of a cone shape within the total beam, also has a little bit of the problem that people will tend to aim it too high when trying to get maximum range (thus blinding opposing traffic), but it's not so bad as with the H one S nor the Trelock LS885 in which this is also a bad point. For aiming a lamp correctly it seems essential that a cutoff is strict and remains horizontal and that the beam does not have a hot-cone such as the LS885, H-one S and to a lesser extent the Philips Saferide 60 have.

Ervaringen, 75/95 lux versie:

I wrote on the main lighting page:

Apparently it's been significantly improved, with a different LED and new reflector.

The original lamp, from cursory examination looks to have a Cree XP-E. The LED in this new version of the H-One S looks bigger, and more yellow... I was told the light colour is warmer in this version, well, I will soon see.

First ride: Light colour is indeed better than cool white, looks neutral white or almost so. I will compare with a neutral white (modified) flashlight soon. The beam shape is better for me in that it doesn't have the hard edged block of light before the rest of the beam. The reflector looks the same as in the original H-one S, perhaps it wasn't changed contrary to what I've been told, but they just made use of the blurring that will take place by virtue of a bigger LED die? Anyway, it still has a fairly large gap from the front wheel to the beam, and the start of the beam (the section that was a hard edged rectangle in the original version) is too bright compared to the rest of the beam. It's getting closer to good, but there are still a lot of issues with the beam. Comparing to the Luxos B: I can see farther with it than with the Luxos B, whose beam has a lot more artefacts too. The lamp is sufficiently different from the old version that Herrmans should have renamed this lamp. I certainly can't see as far with this as with the Philips LBL, despite the supposed 95 lux (I didn't use a taillamp). I mentioned the issue of lux rating long ago already on my website, that it doesn't just needs to be high, it also needs to stay high for a certain range on the wallshot to give long distance visibility.

4-1-2013: Ride in the rain, comparing it to the Luxos B and a torch that I modified with a neutral white XP-G LED (colour 5B1, not yet optimal, something like 4C is better):
The first section of the beam, that I think is too high intensity compared to the rest, stands out very well in the rain, it does not disappear. If only the rest of the beam could be made this bright the lamp would be fantastic. I then switched to the Luxos B and there was a big problem with it: The near field in case of rain is very much overexposed because you see almost nothing from the rest of the beam and thus you only see the light close which will remain better to see because of the angles, which makes the problem worse. [ Btw., in my own reflector design in December I chose light to start at 3 m from the lamp, and at reduced intensity there compared to ca. 15m and further... ] So in the rain the neutral white colour of the H-one S kicked ass, and the artefacts and overexposure of the Luxos-B close to the bike are very annoying such that you see very little with it. Especially problematic with glasses and raindrops on it, I felt I was almost blinded by the Luxos B. Comparing the H-one S with the torch: The torch is clearly better in the garden at close range, at larger distance the difference becomes smaller, but there is some difference such as that the grass with water on it looks whiter with the H-one S than with the torch.

I need to do a comparison with the Saferide 60 to finalise my conclusion...

Mounting bracket

I had a report from a user whose mounting bracket broke, and 2 replacements as well. As the bracket is fairly short I didn't expect this and it hasn't happened to me, but checking the bracket the problem is clear: It has been stamped, flattened quite a bit where you mount it on the fork crown. Apparantly too much... (picture to follow)

Plaatjes van de lichtbundel:

Voor meer informatie over het maken van plaatjes van lichtbundels zie de pagina over camera instellingen/positie, lamp hoogte en gebruikte wegen.

I made the beamshots without taillamp, giving the maximum brightness of the lamps.

Weg 2, camera hoogte: 1,65m, camera afstand: -0,40m, camera mikpunt: 50m op de weg.

Herrmans H-One S versie 1

Herrmans H-One S versie 2
Lamp hoogte 0,75m
lamp on at 0.75m height
Camera: h=1,65, d=-0,40, mikpunt=50m
(Origineel 20 megapixel)
Lamp hoogte 0,75m
lamp on at 0.75m height
Camera: h=1,65, d=-0,40, mikpunt=50m
(Origineel 20 megapixel)

Conclusie:

60/75 lux version: I don't like the squarish blob part of the beam... A friend of mine really liked that though as it made motorists note him... But it's not available any more so it barely matters now :)

75/95 lux version: The higher lux rating doesn't show at all in use, but the light colour is a lot better than any other lamp that I had tested up to that moment which was clear especially during rain. For the price this is a nice lamp, but I would like to see more light at longer distances (40-50m). The Philips Saferide 60 since around the same time (week 46 of 2012 or earlier) also uses neutral white LEDs, which I only found out about in December 2013, so I will compare these soon.

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