25.04.2012

LED720-66-60

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4.

Heat Generation

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Thermal design of the end product is of paramount importance. Please consider the heat generation of

the LED when making the system design. The coefficient of temperature increase per input electric

power is affected by the thermal resistance of the circuit board and density of LED placement on the

board, as well as other components. It is necessary to avoid intense heat generation and operate

within the maximum ratings given in the specification.

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The operating current should be decided after considering the ambient maximum temperature of

LEDs.

5.

Storage

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The LEDs should be stored at 30°C or less and 60%RH or less after being shipped and the storage

life limits are 3 months. If the LEDs are stored for 3 months or more, they can be stored for a year in a

sealed container with nitrogen atmosphere and moisture absorbent material.

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Please avoid rapid transitions in ambient temperature, especially in high humidity environments where

condensation can occur.