December8,2015
25116‐S01,RevB
Power Supply
We recommend using Thorlabs’ DC2200 or LEDD1B LED current drivers
(for control of a single LED). Alternatively, the DC4100 or DC4104 driver can
be used with the DC4100-HUB, which allows simultaneous control of up to 4 individual LEDs.
If you decide to use your own DC source, please make sure that the operation current does not
exceed the maximum allowed value, sufficient forward voltage is supplied, and that the correct
connection is made to Pins 1 and 2.
Maintenance and Service
The M470L3-C LEDs are not water resistant and must be protected from adverse weather
conditions. To avoid damage, do not expose them to spray, liquids, or solvents. The M470L3-C LEDs
do not contain any parts serviceable by the user and does not require regular user maintenance. Do
not open the enclosure. If a malfunction occurs, contact Thorlabs for return instructions.
Warnings and Safety
Inappropriate use of any Collimated LED product may result in permanent eye damage. To prevent
injury, use this product in accordance with the International Standard “Photobiological Safety of
Lamps & Lamp Systems” IEC 62471. These LEDs fall under Risk Group RG2 – Moderate Risk Group in
accordance to the standard IEC 62471:2006.
If using these LEDs in microscope applications as a replacement for mercury vapor lamps, the same
precautions should be taken.
During normal operations, the casing temperature may exceed ambient temperature by as much as
25 ˚C (45 ˚F). To prevent higher case temperatures, the products should be operated without
anything hindering air movement around the convective cooling fins.
Please note that these LEDs are not suitable for household room illumination.
These LEDs must not be operated in explosive environments and should only be used with shielded
connection cables.
All statements regarding safety of operation and technical data only apply when the unit is
operated correctly according to its specifications. The safety of any system incorporating the
equipment is the responsibility of the assembler of the system.
UV Warning Statement
These LEDs emit intense UV radiation during operation. Precautions must be taken to prevent
looking directly at the UV light. If viewing the UV light is necessary, UV light protective glasses
must be worn to avoid eye damage. Do not look directly into the UV light or look through the
optical system during operation, as this can be harmful to the eyes, even for brief periods, due to
the high intensity of the UV light.
WARNING
UV emitted from this
product. Avoid eye
and skin exposure to
unshielded products.
Possibly hazardous
optical radiation
emitted from this
product. Do not look
at operating lamp.
Eye injury may result.
UV LEDs VIS LEDs
