TG-201902141228EP
(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 must 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.
Tel: +86-755-66839118 Fax:+86-755-66839300 E-mail:sales@refond.com Web: www.refond.com
REFOND:WI-E-045 A/3 REV:E/0
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