Press information
A lamp that thinks for itself:
OSRAM Dulux EL Sensor
MUNICH - This is a lamp that does not need time switches or any other such devices. The new Dulux EL Sensor plus energy-saving lamp from OSRAM "knows" when to switch itself on and when to switch itself off. And it always does this at exactly the right time, as the light fades below a certain level or rises above that level again.
This world first has been made possible by microprocessor technology. For the first time a programmed microprocessor is being used to control the operation of a lamp. And this is no one-off but a mass-produced lamp for the consumer market.
The new OSRAM Dulux lamp reacts to infra-red radiation, which is emitted by the sun and by other light sources such as incandescent lamps. Two sensors detect this infra-red radiation in the environment of the lamp and produce a signal which is then evaluated by the electronic circuitry in the lamp. Depending on the value of the signal the lamp is then switched on or off. To ensure that the sensors take accurate measurements they must be open to sunlight. They must not be in shadow or exposed to direct light from other light sources. If the lamp is fitted in daylight it will flash to show that it is fully operational.
OSRAM Dulux EL Sensor plus can be fitted in any luminaire with an E 27 fitting. At only 140 mm in length and 52 mm in diameter it is small enough to fit in all standard luminaires and casings. It is as bright as an ordinary 75 W light bulb despite its power rating of just 15 W. And with a life of 15,000 hours it will last as long as 15 light bulbs one after the other.
This new lamp is not only convenient it is an extremely economical source of outdoor lighting. What’s more, because it switches on and off at different times depending on available daylight it has the extremely reassuring benefit of giving the impression that the house is occupied.


