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Thorlux designs, manufacturers and tests the vast majority of its ownLED electronic systems including the lenses for precise optical control.

We carefully consider end of l ife scenarios, for example, LED failures,solder joint failures and isolated component failures to ensure new

designs have on-going system reliability even when individualcomponents fail.

Our 79 year company history, running into thousands of yearsof combined experience, ensures every aspect of lighting a spaceis carefully considered - a requirement all the more important as LEDlifetimes are now expected to reach 50,000 to 100,000 hours or even more!

LED GUIDE

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7/25/2019 led-guide

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WHITE HIGH POWER LEDSIdeal where excellent optical control

is required - for example seethe Folioand the G4.

HIGH POWER BLUE LEDS ANDREMOTE PHOSPHOR

Ideal for excellent efficiency where preciseoptical control is less important -

for example see the XL-20and the G3 LED.

MEDIUM POWER LEDSIdeal to create high efficiency, well diffused,

low glare solutions - for examples seethe Viva, the Sky-Domeand the Dot.

This brochure presents the very latest Thorlux LED productinnovations using three different types of LED technology:

LEDs have developed significantly now exceeding the performanceof even the best fluorescent solutions. Volume increases have reducedcosts, making them the ideal choice in many more applications. Not allLED solutions are the same so Thorlux has introduced a simple markingcode into its literature to identify the key performance characteristicsof its LED based luminaires - an example is shown to the right.

LED characteristics are shown on web catalogue download pages andshow the best performance expected within the range. Please checkphotometric data for specific model types which may be less than theoptimum figure tabulated.

EXAMPLE:

LL/CW

101.7Ra80+

P/UP

R/RxR

K4000

%>85

PF>0.9

L70/B1060K

LED CHARACTERISTICS

Ra

Indicates colour rendering index (colour quality). A minimum of Ra 80is recommended for working areas.

K

The approximate colour temperature of the light source. There willbe a band at which the LEDs are chosen from around this target figure.More accurate information, for specialist applications, is availableupon request.

L70/B10

These figures illustrate the target life expectancy of the LED (forexample 60K = 60,000 hour life expectancy) which is a combinationof light output degradation (L70 = when the light output has reducedto 70% of its initial level) and lamp failure expectation (B10 = when10% of the LEDs have failed to meet operational expectations).

P/U

Some LED lamps comprise a number of LEDs connected in seriesor in a series/parallel group. If the system is protected (P) then failureof a single LED will not affect others in the group. If the systemis unprotected (U) failure of one LED will cause others in the groupto extinguish.

%

This figure illustrates the LED driver efficiency.

R/Rx

When the LED fails, some luminaires require replacement in theirentirety (Rx) some have replaceable LED lamp assemblies (R).

PF

Indicates LED driver power factor.

LL/CW

Luminaire lumens per circuit watt, the luminaire efficiency includingALL optical and gear losses. It is very important to compare thisfigure correctly - other manufacturers may state LED efficiency, forexample, which does not include all losses within the system andcould therefore be a misleading, much higher figure.

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