REFOND:WI-E-045

A/3

REV:E/1

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(3) VOCs (Volatile organic compounds) emitted from materials used in the construction of fixtures

can penetrate silicone encapsulants of LEDs and discolor when exposed to heat and photonic

energy. The result can be a significant loss of light output from the fixture. Knowledge of the

properties of the materials selected to be used in the construction of fixtures can help prevent

these issues. Refond advises against the use of any chemicals or materials that have been found

or are suspected to have an adverse affect on device performance or reliability. To verify

compatibility, Refond recommends that all chemicals and materials be tested in the specific

application and environment for which they are intended to be used. Attaching LEDs, do not use

adhesives that outgas organic vapor.

(4) Handle the component along the side surface by using forceps or appropriate tools; do not

directly touch or Handle the silicone lens surface, it may damage the internal circuitry.

(5) In designing a circuit, the current through each LED can not be exceed the absolute maximum

rating specified for each LED. In the mean while, resistors for protection should be applied,

otherwise slight voltage shift will cause big current change, burn out may happen. The driving

circuit must be designed to allow forward voltage only when it is ON or OFF. If the reverse

voltage is applied to LED, migration can be generated resulting in LED damage.