Home Selects LED
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Lamps, pendants desk lamps
Time and place: U.S.
Early products: desk lamps
Most popuar products: led (see its meaning on abbreviationfinder)
USD 23.69 – USD 52.77
Bioledex has been here last fall with his “Roder” – and “Helso” – LED spotlights very neatly set in scene. Is that also the strong between 470 and 1055 lumen E27-“Araxa” lamps “DEL-KO” trade mark?
High quality light was earlier not necessarily characteristic of many Bioledex LED lamps – also with us in the House, some older, more questionable models from the former range of the Augsburg company “DEL-KO”light up. Only with reservations, I therefore had the offer of Schwarzenbeker in October 2013 ‘home sphere “-LED-shops accepted, some to test the new Bioledex spotlight.
After my subjective evaluation and objective measurements my blog partner “David communication”, it was however: mission accomplished, blown away prejudices. Solid LED lamps with a good price / performance ratio, which even partly significantly outperformed their ratings remain in memory.
Now, four Bioledex-“Pears” “Araxa” series came off for a change. I don’t know what could have to do with the ancient city in Asia minor, or a Brazilian municipality – the name has probably no deeper meaning.
My first impression was that this test would bring even no great change. Because first of all keep the Visual and qualitative differences in the candidates within very narrow limits (of course apart from the brightness); Secondly a new laboratory measurement Marathon seemed fairly superfluous, because there would be there most likely again no negative surprises. This reduces while the entertainment value of this test series, but speaks for the consistency of the new Bioledex models and the credibility of official data.
The brightest “pear” in “Araxa” lamp load
The newest and lightest model I can rid ever all common features of the four variants: die-cast aluminium housing with white ceramic composite coating, without ventilation slots or ribs, matte glass hood, silver-coloured E27 base without externally visible mass soldering connection, 2800 Kelvin color temperature, color rendering index RA 80, not dimmable, 30,000 light hours and 100,000 switching cycles rated life, EU eco-label A +, three-year warranty with “Lamp replacement for product defects”, six centimeters maximum diameter.
Externally, it reminds of the Philips series, leaning particularly closely to the traditional shapes and dimensions. Actually, there is a big difference but: while the Pear-shaped Philips retrofits have little more than 150 degree viewing angle, the Bioledex lamps create significantly more. In the version with 13 Watts and 1055 lumen luminous flux220 degrees (Pack snippet above, Download pdf of the data sheet), the other three are even 240°.
Housing size affects beam angle
The small difference comes mainly from the slightly different form of the brightest and with 160 grams of heaviest “Araxa” and not by type and arrangement of LED chips. The matte cover that partly reflects the light from the LEDs shining from the bottom, partly diffused, stands here not quite enough about the larger housing base and can throw back the brightness only in a limited angle down. Overall the lamp with 11.6 cm length exceeds the weaker “bulbs” to about half a centimeter. In practice the 20 degrees difference noticeable but hardly, as shown in the picture of the light: While there are more brightness to top and sides than the down; It will not really dark under’m base but also. This is quite “round brilliant”.
In my open test version, the lamp settled without appreciable delay switch off, and moved to two hours “Swing a” 13.3 Watts electrical power factor 0,59 developed only a very subtle buzz that was even in my quiet sound studio in not more than 5 cm distance.Even with weaker ambient noise, this is no longer perceptible.
Back to top it is pretty hot
Hanging installation the hood was warm maximum 30 degrees during a long period of operation, in the direction of base – so upwards – I have can measure up to 85 degrees. This corresponds to the typical test temperature at the Tc point of LED lamps, determines the nominal life under harsh conditions of practice.
The Board under the hood with the “anonymous” 36 LED chips (photo: Home sphere-PR) is in fully connected to a heat-conductive paste with the upper part of the housing, which should ensure a good heat dissipation. Presumably, the temperature is so there isn’t much higher than outside.
However in principle, I would recommend to use this “pear” only in well ventilated lamp housings, because the temperature can be otherwise also three digits. The absence of passive external cooling measures while benefiting the optics, but naturally complicated the delivery of heat load to the environment. This applies to all four “Araxa”-variants.
Data read is to the eye test
A point of criticism, which also concerns the whole series: No data are printed on the lamp housing. The read only with good eyes and when sufficient light on the top of the Matt hoods – “white on gray” and very shows poor contrast (pictured left).
Especially in the three smaller versions with identical mass, therefore acute confusion reigns. Many light bulbs that was while similar to poorly resolved, but”Retrofit” does not necessarily mean Yes, that new LED-era copy of the weaknesses of the old power guzzler.
Who loves it very bright, is right here
Nothing to complain about there on the core competency of “Araxa”-lamp. Provides lots of light, can replace at least a 75-watt incandescent bulb, works mainly for direct view slightly “cooler”. Spontaneously I would have typed rather on 2900 as on 2800 Kelvin – a common phenomenon in very bright LED lamps that you can get more or less quickly.Indeed, the perceived indirectly, reflected by objects light color definitely reminds incandescent lamps:
Veteran LED champion immediately see, clearly, that we here have no light of RA 90.The Red are still more clearly worked out and would have to mingle a little less green in the big picture. It fits but at least at par RA 80 and looks nice. The brightest “Araxa” passable renders skin colors, without having them – sickly pale look like in many cheap LED lamps -.
My test result:
The brightest E27-Bioledex-“Pear” in “home sphere”15.90 euros. Compared with the always cheaper and discount and special offers which is currently pretty steep for a non-dimmable 1055-lumen-“Pear”. But good arguments in favor of the latest “Araxa” are the solid construction, the relatively wide beam angle, the savings potential of over 82% compared to a traditional light bulb, and the acceptable quality of light-bulb.
It differs from the older and weaker sisters also through the preservation of luminous flux after 30,000 hours of lights by 80% of the initial value. That would be so whopping 844 lumens; the other versions are called only 70%. If she but actually achieved their exceptionally long life time – given the high level of temperature – in continuous operation may depend very by the air flow at the point of use.
The best rated My ratings would be four stars for non-dimmable LED lamps. For this she would have to have a colour rendering index of at least RA 90 top and be fully usable with moderate continuous running temperature. At RA 80 and up to 85 degrees in open version, there is but are for the 13 Watt Bioledex-“Araxa” only
The “middle class” for the mass
Most likely, much larger quantities are deducted from the slightly older and significantly weaker “Araxa” lamps than by the 13 Watt-“Lighthouse”. The three models meet with 470, 600 and 810 lumen luminous flux a wide range of brightness requirements, are also not dimmable and offer a decent price / performance ratio with 8.90, 9.90 and 11.80 euros at “home sphere”(pictured right, the packaging of the 10-watt version).
You have to make cuts compared to the most expensive Bioledex-“Pear” smaller versions really only at the luminous flux; everything else is essentially equivalent or even better. So the nominal half value angle is consistently 240 degrees instead of 220°; Rated life, color temperature and color rendering index are the same.
Two images should be enough
In fact, it would be rather pointless to publish their work, because absolutely no differences on the brightness would recognize for each of the three “middle class” lamps own light effects and color photos in this test. The images of the 810-lumen “Araxa” are so here representative of all.
You have to worry about any Variant that it remains dark towards the base. Hanging installation in a ceiling fixture, there is quite appreciable light upward; Standing – such as a table lamp – it is reasonably bright down. Many led “Bargain bulbs” create not even close with their 120 to 160 degrees half angle.
Sound quality is also available at the colour reproduction. If you compare my default color fidelity image of 810-lumen-“Pear” with which the 1055-lumen lamp, you’ll see little difference:
This suggests that glow in the mid-range “Araxas” while other LED chips as in the larger newcomer (what the Board image below shows), but presumably from the same supplier. Anyway, I have no reason to doubt the official RA value 80. The representation of objects and colors sure doesn’t look for top quality light, goes through but as a solid “home cooking”.
The weakest is the heaviest
And what about other denominations?The nominal 6.5 watts strong 470 lumen lamp (Pack snippet links, Download pdf of the data sheet), as a replacement for a 40-W “incandescent bulb” thought 6.7 Watt electric power factor of 0.63 moved two hour “Warm up” in my open test version. It was just as quiet as the above tested “Araxa”-flagship.
The colour was – probably due to the much lower brightness – much warmer and incandescent-like, seemed to be slightly “cooler” but in continuous operation. The temperatures climbed (in suspended installation) on a maximum of 25 degrees on the glass cover and 60 degrees to the base.
Curiously, the weakest “bulb” of the outwardly identical trio is also the most severe: at least 126 grams she brought on my digital scale – very nice solid for this performance class and a LED lamp without additional dimmer electronic ballast.
8 watts for the new niche
Easier, the 600-lumen version officially 8 Watt presented three grams. It meets in a brightness niche that had never been occupied by light bulbs. Or have you ever seen a conventional 50-watt-“Pear”?
Reported with her my “energy meter”after the “8.8 Watts power factor 0.55 swing and a” (0.50, Download pdf of the data sheetare nominally). It also had the already well-known softly whirring at a maximum 5 cm distance. The maximum temperatures for hanging installation: 25 degrees on the hood, 68 on the base.
The packaging (picture on the right) shows that this Bioledex-lamp with the energy efficiency index (EEI) 0.15 in the middle of the second EU-eco label level A + charged after I may be placed. 11.2 cm total length exceeds that of traditional light bulbs (9.5 cm), should fit but still in the most existing fixtures. Maximum of 6 cm diameter are already suitable for retrofit.
The platform approach has limits
The “unity platform” concept known from the automotive industry continues also in the housing of the 10 Watt strong 810 lumens-“Araxa” (Pdf download of the Dastenblatts), but seems to push its limits. It is the brightest of the three Bioledex-of “Middle class”-lamps, only 121 g funny way the lightest model of the entire four test field, but unfortunately also the hottest.
In continuous operation I 11.2 Watt at a power factor of 0.65 measured, in hanging, completely open Assembly maximum 30 degrees on the hood (the home sphere-PR image shows the Boarddirectly below the close to densely packed 38 SMD LED chips) and impressive 87° on the lower part of the housing.
These are two degrees more than with the more powerful, but also slightly larger dimensioned 1055-lumen lamp. At least here, it is critical, in narrow luminaires without sufficient air circulation because the temperature there could climb after two or three hours above the 100-degree mark. This will shorten the life of almost certainly.
The heat budget would likely be significantly relaxed when the LED chips and electronic components would plug into a larger enclosure, or if there was a passive convectionthrough “chimney effect”air vents instead of a fully closed, smooth cover. Attractive optics as well as cost-saving development and production techniques while ensuring greater acceptance and favourable prices, should not go but at the expense of durability. Otherwise we end up also with LED lamps quite fix evil suspected of “planned obsolescence”.
My test judgments:
Especially the 470 – and 600-lumen “Araxa” lamps by Bioledex are with their almost 84% savings potential, the long life time, the relatively compact dimensions and the wide dispersion of a good choice for a average LED equiment, the may waive often Dimmability and top quality of light. It looks always better than with the usual cheap compact fluorescent lamp. 8.90 and 9.90 euros go in order, especially since a good compromise between optics and heat balance was found here. There are by my Ratings
three and a half stars.
Not quite as good the 810-lumen version cuts off. Apply to them while in principle the same benefits; She suffers a limited applicability due to the high maximum temperature in my opinion. That a 13 W/1055 lm LED lamp reaches up to 85 degrees on the freely suspended housing, may be yet somehow understandable. a weak 10-watt version the acceptance of violent 87 degrees under the same conditions but very difficult. Whether 11.80 euros for this “Araxa” are a reasonable price, you have to decide. Therefore, there is a further deduction and only benevolent