OliNo

Renewable Energy

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 7,000 hours and still continues.

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.

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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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Inrush current for (led) light bulbs

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

In this article I explain the inrush current phenomenon for cold lamps. This is the current that flows in a short time period just after switch on of the (grid)voltage. This current peak for an (led) light bulb is directly comparable to that of a motor. The inrush current measurement function of for instance a digital multi meter is for the lamp inrusch current not suitable.

The measurementson the inrush current at the measured lamps is done in a way that gives relevant info of the peak currents and a parameter is derived that is needed in selecting the correct fuses.
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Dimming of linear halogen lamp with phase cut dimmers

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

This is an article that shows the dimming results of a linear halogen light bulb that is dimmed by forward phase-cut (LR) and backward phase-cut dimmers (tronic, RC). The halogen lamp is well dimmable in the sense of dimming the amount of light. The images created show what that means in terms of light output as a function of dim-position.

What is remarkable is the amount of power still being high when the light has been dimmed a lot.

The graphs can be used to compare other types of lamps that are dimmed, in order to be able to judge whether the dimming works well or not.

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LumitexT – Endurance test 20x led modules LumiString HLC2S

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

LumitexT has put a set of 20 ledmodules in endurance test.

This article presents the endurance test results. The test has run 6.000 hours and shows a constant light output.

See here the results of the 0-hours test.

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EU Energy label for lamps Update Sept 2013

Posted by Marcel van der Steen in Explanation No Comments »

One of my customers informed me about an update of the EU Delegated Regulation (A regulation shall have general application. It shall be binding in its entirety and directly applicable in all Member States) about the energy labelling of lamps. I read through the regulation and present here a summary.

The regulation states that these new labels need to be introduced a of Sept 2013 (for new products). OliNo will deliver the new labels (6 variants in total) derived from our measurements and completed with the supplier’s name or trade mark and the supplier’s model identifier.
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