OliNo

Renewable Energy

LumitexT – Endurance test 4x strip LumiBOX-XT(NV) 350mm 3-LED

Posted by Marcel van der Steen in Endurance Test No Comments »

LumitexT has put 4 LED-strips in endurance test.

This article presents the endurance test results. The test has run more than 6,000 hours.

See also the results of the 0-hours test.

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Nordeon – Njord 1500mm with TLed LUXE MAX

Posted by Marcel van der Steen in Uncategorized No Comments »

Nordeon presents an roof mounted led luminaire. The measurements from OliNo show that the lamp emits a warm/neutral white light with a color temperature of 3798 K. The lamp consumes 23.3 W and has a luminous flux of 2631 lm. This results in an efficacy of 113 lm/W. The lamps energy category label is A+.

This article shows the measurement results. Many parameters are also found in the Eulumdat file.

See this overview for a comparison with other light bulbs.

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Lampreparatur im Studentenwohnheim

Posted by Marcel van der Steen in Energy saving, Explanation, Lamps No Comments »

20140811_075402_artikelDieser Artikel zeigt warum eine Leuchtstoffröhre nicht mehr funktionierte und die Erfahrung deren Reparatur. Diese Aktion hat die Folge, dass man jetzt die alte Leuchte niet wegsmeißen muss sondern weiter verwenden kann, aber auf Grund des Alters der Leuchte war es nicht so einfach sie sicher zu reparieren.

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Solarzellenpaneele oder Sonnenkollektoren?

Posted by Marcel van der Steen in Energy saving, Explanation, Solar energy No Comments »

20140626_131259_artikelIn diesem Artikel erkläre ich wie ich eine Wahl getroffen habe zwischen Solarzellenpaneele (oder kürzer Solarpaneele, bringen elektrische Energie) und Sonnenkollektoren (bringen Wärme-energie).  Ich habe schön eine Wärmepumpe (Nutzung der Erdwärme mittels Wasser) und vielen raten mir an Sonnenkollektoren zu verwenden, damit die warmes Wasser machen wenn es viel Sonne gibt. Das Pufferfass wird so extra aufgewärmt durch warmes Wasser von den Kollektoren damit die Wärmepumpe keine (elektrische) Energie anwenden muss für Heizung. Dazu kommt noch dass für die Heizung warmes Wasser eine Wärmepumpe ein niedrigeres Leistungszahl hat weil die Temperatur des Wassers hoch sein muss (45 – 50 Grad).

Dieser Artikel macht einen Energie- und Kostenvergleich zwischen beide Forme von Energieerzeugung.

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How to pay easily with bitcoins

Posted by Marcel van der Steen in Explanation No Comments »

Since March 2014 OliNo accepts payments with bitcoin. Internationally it is very cheap to pay with bitcoins as the transfer fee (also called a miner fee) is about 8 eurocents. And the payment is immediate (firm confirmation after 1 hour) and irreversible; there is no bank in between! That is also a main reason why we support it: no bank is needed, and you can manage your own money. Also the politics have less influence and they cannot print additional bitcoins.

We as OliNo support a future where we as people can deal ourselves with our money we use and are not dependent from banks or politics. We give a 10 % discount if you pay with bitcoins. In this article we explain how payment can be done easily.

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Lemnis Lighting Asia – Endurance test 120 cm glass led tube

Posted by Marcel van der Steen in Endurance Test 1 Comment »

Lemnis Lightings Asia has put a glass led tube in endurance test.

This article presents the endurance test results. The test has run more than 11,000 hours.

See also the results of the 0-hours test.

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MOOOI – Endurance test Heracleum II 7V DC

Posted by Marcel van der Steen in Endurance Test No Comments »

MOOOI has put an led luminaire in form of a branch of a tree, in endurance test. The power supply used is 7.0 V and an additional capacitor is used.

This article presents the endurance test results. The test has run 9.000 hours and still continues.

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MOOOI – Endurance test Heracleum I

Posted by Marcel van der Steen in Endurance Test No Comments »

MOOOI has put an led luminaire in form of a branch of a tree, in endurance test.

This article presents the endurance test results. The test has run 9.000 hours and still continues.

Read more…

Hato Lighting Solutions – Endurance test Led Luminaire

Posted by Marcel van der Steen in Endurance Test No Comments »

Hato Lighting Solutions has put an led luminaire in an endurance test.

This article presents the endurance test results. The test has run 21.500 hours and still runs.

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Advantages with a high S/P ratio

Posted by Marcel van der Steen in Explanation, Lamps No Comments »

lli_bv-high-bay-industrial-led-fixt-48-pcs-cree_s_and_p_spectra_at_1m_distanceThe S/P ratio has been explained before on this website. Now two Technical Memorandums (TM 12-12 and TM 24-13) of the Illuminating Engineering Society of North America (IESNA) elaborate on how and how much advantage one can make on using light with a high S/P ratio.

In short it comes down to this: at low environmental light levels (such as in streets at night with street lights on) your eye works with night vision (you loose the colors in your view but still can see a lot of details and overview with only moon light and light from stars). Lamps with a specific light (a specific spectrum) suited for this night vision (meaning high S/P ratio) will lead to an increase of brightness perception. So we need less light for the same brightness impression.

A second effect is valid for light levels indoor (reading, work on computer, work on electronic and mechanic setups, repairing things etc). When you use light with a high blue content (cold white, meaning also high S/P ratio) then this results in a decrease of pupil size which results in a sharper view. Thanks to this the average light level can go down to still have the same view-efficiency.

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