Resource Brochure

46 Tips & tricks Using Lux and Lumen values to select the right product If you are searching for functional lighting with a certain level of illumination, you can easily see whether the chosen product has the right degree of brightness by reading the Lux values on the lighting diagram. This also allows you to compare different lights. The luminous flux, or light output of a lamp, does not provide any information on these values. It is suitable only for selecting a light in systems where these are replaceable, such as the T5 LiteLine lights. Extending LED supply leads Supply leads cannot be infnitely extended. Firstly, unwanted EMC effects could occur (electronic systems could be disturbed); sec- ondly, ballasts could be overloaded or the light output of the lamp signifcantly reduced. Our lights based on 12 Volt DC are supplied with a mini LED plug system M1 and may be generally extended by one extension lead of 1.8 m each, in addition to the supply lead ftted as standard. Our lights based on 24 Volt DC are supplied with a Multi-Plug system MP2 and may be generally extended by 2 extension leads of 1.8 m, in addition to the line assembled as standard. Dimming LED lights You will fnd whether a light is dimmable in the feld "Technical details in brief" on each product page in the catalogue. LED lights are dimmed by PWM (Pulse Width Modulation) on the low voltage side. This is done either by our LED dimmers or through special ballasts which are controlled through a 1-10 V control voltage or phase dimmers, depending on type. Important: Standard LED ballasts are not dimmable. Who remembers what? All switches of this range "remember" their state when the power was switched off. For example, for the Trimitter this means that it remembers the last dim level before switch-off. Factors affecting life span As a basic rule, the indicated life span of technical equipment is based on an ambient temperature of 25° Celsius. Higher tempera- tures generally reduce usually the lifetime. When installing, avoid predictable heat build-up (e.g. by mounting a ballast between two wooden plates), unless absolutely necessary. Heat generation The light emission of LED generates a certain amount of heat, which however, in contrast to other technical appliances, is so low that it has almost no impact on the environment. The design of the light ensures that under normal conditions of use no heat accu- mulation will occur that reduces the life of the electronic com- ponents and the LED in particular. When using high-powered LED flex strips, the mounting surface must be able to dissipate some of the heat. We therefore recommend the use of ChannelLine profles made of aluminium which act as heat sinks for LED light strips. Loads of ballasts for LED lights , connection of electronic switches. The power consumption of small LED lights or the standby power of our switches is sometimes so low that you need to consider the minimum load when selecting the appropriate ballast. Electronic switches should only be connected to the ballasts whose power range is specifed from 0 to X W. If voltage drops below the mini- mum load, reliable operation is no longer guaranteed. Overload of ballasts Make sure that the ballast is not overloaded with the number of lights connected to it. Observe the inrush current Fully electronic ballast have no inductance in the input circuit which limits the current rise at switch-on. Therefore, a high cur- rent peak may occur when the mains voltage is switched on. When using large number of ballasts (e.g. in an exhibition), this should be considered when protecting the circuit. Electronic ballast with output control Electronic ballast with output control compensate mains voltage fluctuations of +/- 10%, so that the emitted light flux is nearly constant. Devices of this type are also called controlled devices. In so-called uncontrolled devices, mains voltage fluctuations of +/- 10% also mean a +/- 10% fluctuation of lamp power and light output. Burn-in of fuorescent lamps The lamp manufacturer Osram recommends the burning-in of new light bulbs prior to commissioning of the lighting system. To stabilise the lamp operation and get the emitter material on the electrodes into its fnal shape 100% power, all fluorescent lamps