Following the success of the Stela for mostly residential areas and the T-line for tunnels, Indal introduces a  new LED luminaire for traffic routes, that can replace 250W and 400W High-Pressure Sodium lamps. This will enable savings on energy costs  and CO₂ emissions from 10 to 40%. Considering that these installations involve high wattages, this adds up considerably. LED is about to experience new levels of success.

Less lumens, the same lighting performance

The Luma features the popular REVOLED™ technology, that offers the same lighting performance on the road as the familiar High-Pressure Sodium lamps, but with fewer lumens – this combined with significant energy savings  from 10 to 40%. Moreover, with Luma, light spillage and light pollution is kept to an absolute minimum. The objective was to find a low current  and maximum energy saving alternative to the usual road lighting up to 400W to truly add something new to the current offer in the lighting industry. With Luma there is now an excellent LED alternative for traffic routes, such as motorways, inter urban main roads, ring roads and main roads.

A different approach than  residential area street lighting

With the design of the Luma a wide range of criteria  was kept in mind. First, a traffic route requires more light than in a residential area. Residential areas require 2,000 lumens per installation. The Luma can provide up to 40,000 lumens and can even replace the 400W High-Pressure Sodium lamps, which are used internationally. By placing a large group of LEDs close together, the size of the luminaire is kept to a minimum. And to prevent  thermal loss of light, an effective cooling system is integrated into the design.

In addition, Luma achieves adequate energy efficiency and requires no periodic lamp  replacement. All of these characteristics make Luma a lighting system that is truly innovative. Another important criteria in the international package of requirements is non-glare optics that satisfy the ME1 till  ME6 road  lighting standards, while at the same time preventing the  light distribution ‘drifting off’ towards the bank or the sky. Again the Luma meets these demands.

 

Customised light

An especially attractive use of the Luma is the option to programme the power supply   precisely. You can customise  the required light flux, desired life time expectancy and energy consumption precisely to your situation. As a result, you no longer talk about luminaires, but about lighting systems that can offer ‘customised light’.

People are inclined to think in terms of standardised solutions. But with the setting that Indal offers, the  operator can select the  ideal solution. During the lighting calculation, you determine the number of lumens you require and which lens-optic. Next, you can calculate what the options are if you want the LEDs to last 80,000 operational hours without replacement, for example. The calculation tool that Indal offers then gives you the option: more LEDs and less power, and therefore very energy efficient, or fewer LEDs and more power, and thus less energy efficient. With Luma, the road authority installs a system. Given the current traffic routes, where the availability of the road is a major consideration and road closures costs a great deal of money, with Luma, you save on the overall maintenance costs.

Fit and forget

With the Luma, a large quantity of LEDs are placed close together (varying from 60 to 200 LEDs) on an  LED module with a flat glass cover. This makes it possible to carry out a  replacement of the LED module, for example, if you have opted for higher power  use with shorter service life times. However, the basic assumption is that the LEDs in the Luma will last up to 100,000 operational hours, which is the equivalent of 20 to 25 years. You just fit it and forget.

Considering the large number of LEDs on a fairly small surface, an effective cooling system is essential. The further the LEDs are spaced, the quicker they cool off.

For that reason a thickened layer of aluminium is applied, above the LEDs in the luminaire,  that dissipates  the heat. On top of the housing a sloping line of rounded ribs are incorporated, that provide rapid heat dissipation to the outside air and promotes the service life time and light output of Luma.