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Product Highlights
Temperature range from +5°C to +85°C (TEC heating
and cooling)
Interchangeable sockets for all common high-power
LEDs and small Level 2 printed circuit boards
Accuracy to 0.1°C
Maximum LED power rating of 10 W
High-Power Also Means
High-Temperature
The temperature of the LED’s chip has an enormous influence
on the light output emitted and on the radiation spectrum
(LED color). This interdependency must be taken into account
particularly in the case of high-power LEDs because the high
operating temperatures lead to an undesirable deterioration in
performance (i.e. reduction in their light output). To be able to
integrate high-power LEDs successfully in final applications, it
is therefore essential to understand the optical properties as a
function of the temperature.
Measuring Thermal Behavior with
the LED-850
TEC test adapter LED-850 enables the influence of electrical
and thermal operating conditions on the optical parameters
of high-power LEDs to be assessed quickly and easily. A
Peltier element with cooler fan is used to cool or heat the test
LED within a range between +5 and +85°C. What’s more,
the integral PT100 sensor and the Peltier element can be
connected to a TEC controller that controls and displays the
temperature. Robust test probes also ensure reliable electrical
contacting of the LED.
Modular Design for Flexible Usage
The modular system consists of the basic LED-850 unit with
Peltier element and heat sink, and a socket (with centering cap)
specifically matched to the respective model of high-power
LED. A mechanical locking lever locks the centering cap securely
in place, guaranteeing correct mounting of the LED every time.
The centering cap also provides the electrical connection.
Two types of centering caps are available:
A sand-blasted, white anodized cap for measuring the
luminous flux using integrating spheres (this centering cap
belongs to the scope of delivery of the LED socket)
A black anodized cap for measuring the luminous intensity
using CIE compliant, LED25-xxx series averaged LED
intensity adapters (cap optional)