Item #	Color (Click for Spectrum)^a	Nominal Wavelength^a,b	Min LED Power Output^a
M365D1	UV	365 nm	190 mW
M385D1	UV	385 nm	270 mW
M405D1	UV	405 nm	410 mW
M420D1	Violet	420 nm	250 mW
M455D1	Royal Blue	455 nm	900 mW
M470D1	Blue	470 nm	830 mW
M490D1	Blue	490 nm	200 mW
M505D1	Cyan	505 nm	335 mW
M530D1	Green	530 nm	220 mW
M565D1	Green Yellow	565nm	100 mW
M590D1	Amber	590 nm	150 mW
M617D1	Orange	617 nm	390mW
M625D2	Red	625 nm	700 mW
M660D1	Deep Red	660 nm	270 mW
M735D1	Far Red	735 nm	260 mW
M780D1	IR	780 nm	160 mW
M850D2	IR	850 nm	900 mW
M880D1	IR	880 nm	280 mW
M940D1	IR	940 nm	320 mW
M970D1	IR	970 nm	35 mW
M1050D1	IR	1050 nm	50 mW
MWWHD1	Warm White	3000 K	500 mW
MCWHD1	Cold White	6500 K	650 mW

Due to variations in the manufacturing process and operating parameters such as temperature and current, the actual spectral output of any given LED will vary. These values were measured with the back side of the PCB at 25 °C. Output plots and center wavelength specs are only intended to be used as a guideline. Click here to download spectrum data.
The nominal wavelength indicates the wavelength at which the LED appears brightest to the human eye. This may not correspond to the peak wavelength as measured by a spectrograph.

Features

Wavelengths Ranging from 365 nm to 1050 nm
High-Power Outputs Ranging from 35 mW to 900 mW
Warm White and Cold White LED Also Available
LED Mounted on Metal-Core Printed Circuit Board for Excellent Heat Management

Thorlabs' High-Power LEDs on Metal-Core Printed Circuit Boards (MCPCBs) are designed to provide high-power output in a compact package. Each LED consists of a single high-power LED with multiple emitters that has been soldered to an MCPCB.

Thorlabs uses high thermal conductivity MCPCB material from Berquist. The MCPCB is designed to provide good thermal management; however, the LED must still be mounted onto a heat sink using thermal paste to ensure proper operation and to maximize operating lifetime. Mounting holes are provided on the MCPCB surface for attaching the LED to a heat sink; the Ø2 mm holes are compatible with #1 (M2) screws (not included). Therefore, these LEDs are ideal for OEM or custom applications.

Thorlabs also offers Mounted High-Power LEDs with an integrated heat sink, as well as Collimated Mounted LEDs, which are better suited for laboratory use where there are fewer space constraints. For questions on choosing an appropriate LED and to discuss mounting requirements, please contact Tech Support.

Optimized Thermal Management
These high-power LEDs possess good thermal stability properties, and hence, degradation of optical output power due to increased LED temperature is not an issue when the LED is properly mounted to a heat sink using thermal paste or thermally conductive double-sided tape. For more details, please see the Stability tab.

Driver Options and Pin Assignments
Thorlabs offers four drivers: LEDD1B, DC2100, DC4100 and DC4104 (the latter two require the DC4100-HUB). See the Drivers tab for compatibility and driver features tab for a list of specifications. The LEDD1B is capable of providing LED modulation frequencies up to 5 kHz, while DC2100, DC4100, and DC4104 can modulate the LED at a rate up to 100 kHz. Please note that these LEDs are not compatible with the EPROM feature of the DC2100, DC4100, and DC4104, which automatically adjusts for the current limits of our mounted LEDs. Therefore, care must be taken not to exceed the current limits of the LEDs offered on this page. To connect the PCB to a controller, please note that the connector labeled "+" is the Anode (+V), and the connector labeled "-" is the Cathode. The other two connectors ("IO" and "GND") do not need to be connected and are reserved for future use. The connectors on different items may be in different locations, but the labels are the same.

For convenient connecting the LEDs to the above drivers please order the optional LED Connection Cable below.

Item #	Color (Click for Spectrum)^a	Nominal Wavelength^a,b	Minimum LED Power Output^a	Typical LED Power Output^a	Maximum Current (CW)	Forward Voltage	Bandwidth (FWHM)	Typical Lifetime	MCPCB Thickness
M365D1	UV	365 nm	190 mW	360 mW	700 mA	4.4 V	7.5 nm	>10,000 h	1.6 mm
M385D1	UV	385 nm	270 mW	430 mW	700 mA	4.3 V	10 nm	>10,000 h	1.6 mm
M405D1	UV	405 nm	410 mW	760 mW	1000 mA	3.8 V	13 nm	100,000 h	1.6 mm
M420D1	Violet	420 nm	250 mW	290 mW	500 mA	3.6 V	12 nm	>10,000 h	2.4 mm
M455D1	Royal Blue	455 nm	900 mW	1020 mW	1600 mA	3.5 V	20 nm	>50,000 h	1.6 mm
M470D1	Blue	470 nm	830 mW	950 mW	1600 mA	3.5 V	29 nm	>50,000 h	1.6 mm
M490D1	Blue	490 nm	200 mW	235 mW	350 mA	3.5 V	27 nm	>10,000 h	1.6 mm
M505D1	Cyan	505 nm	335 mW	410 mW	1000 mA	3.3 V	29 nm	>50,000 h	1.6 mm
M530D1	Green	530 nm	220 mW	400 mW	1600 mA	3.5 V	31 nm	>50,000 h	1.6 mm
M565D1	Green Yellow	565 nm	100 mW	150 mW	500 mA	3.2 V	80 nm	>10,000 h	2.4 mm
M590D1	Amber	590 nm	150 mW	190 mW	1600 mA	2.5 V	14 nm	>50,000 h	1.6 mm
M617D1	Orange	617 nm	390 mW	570 mW	1600 mA	2.5 V	16 nm	>50,000 h	1.6 mm
M625D2	Red	625 nm	700 mW	770 mW	1000 mA	2.2 V	18 nm	100,000 h	1.6 mm
M660D1	Deep Red	660 nm	270 mW	640 mW	1200 mA	3.0 V	17 nm	100,000 h	1.6 mm
M735D1	Far Red	735 nm	260 mW	380 mW	1200 mA	2.5 V	37 nm	100,000 h	1.6 mm
M780D1	IR	780 nm	160 mW	420 mW	1000 mA	2.0 V	31 nm	>10,000 h	1.6 mm
M850D2	IR	850 nm	900 mW	1100 mW	1000 mA	2.9 V	30 nm	100,000 h	1.6 mm
M880D1	IR	880 nm	280 mW	330 mW	1000 mA	1.7 V	50 nm	>10,000 h	2.4 mm
M940D1	IR	940 nm	320 mW	460 mW	1000 mA	1.4 V	30 nm	100,000 h	1.6 mm
M970D1	IR	970 nm	35 mW	50 mW	600 mA	1.4 V	45 nm	>10,000 h	2.4 mm
M1050D1	IR	1050 nm	50 mW	70 mW	700 mA	1.5 V	60 nm	>10,000 h	2.4 mm
MWWHD1^c	Warm White	3000 K	500 mW	550 mW	1000 mA	3.1 V	N/A	>50,000 h	1.6 mm
MCWHD1^c	Cold White	6500 K	650 mW	700 mW	1600 mA	3.5 V	N/A	>50,000 h	1.6 mm

Due to variations in the manufacturing process and operating parameters such as temperature and current, the actual spectral output of any given LED will vary. These values were measured with the back side of the PCB at 25 °C. Output plots and center wavelength specs are only intended to be used as a guideline. Click here to download spectrum data.
The nominal wavelength indicates the wavelength at which the LED appears brightest to the human eye. This may not correspond to the peak wavelength as measured by a spectrograph.
The MWWHD1 and MCWHD1 LEDs may not turn off completely when modulated at frequencies above 5 kHz, as the white light is produced by optically stimulating emission from phosphor.

Click to Enlarge

Optimizing Thermal Management

In order to achieve stable optical output power and maximize lifetime from your LED, the MCPCB must be properly mounted to a heat sink using thermally conductive paste in order to minimize the degradation of optical output power caused by increased LED junction temperature (see the graph to the right).

Compatible Drivers	LEDD1B	DC2100^a	DC4100^{a, b, c}	DC4104^{a, b, c}
Click Photos to Enlarge
Max LED Driver Current Output	1.2 A	2.0 A	1.0 A per Channel	1.0 A per Channel
Max Modulation Frequency Using External Input	5 kHz^d	100 kHz^d	100 kHz^d (Simultaneous Across all Channels)	100 kHz^d (Independently Controlled Channels)
Interface	Analog	USB 2.0	USB 2.0	USB 2.0
Main Driver Features	Very Compact Footprint 60 mm x 73 mm x 104 mm (W x H x D)	Individual Pulse Width Control	4 Channels^c	4 Channels^c
EEPROM Compatible: Reads Out LED Data for LED Settings	-	x	x	x
LCD Display	-	x	x	x

Please note that the EPROM readout feature that automatically adjusts the driver's current limit for our mounted LEDs is not compatible with our LEDs on MCPCB.
LED sources with a forward voltage of greater than 5 V are not compatible with DC4100 and the DC4104.
The DC4100 and DC4104 can power and control up to four LEDs simultaneously when used with the DC4100-HUB. The LEDs on this page all require the DC4100-HUB when used with the DC4100 or DC4014.
The MWWHD1 and MCWHD1 LEDs may not turn off completely when modulated at frequencies above 5 kHz, as the white light is produced by optically stimulating emission from phosphor.

Note: The DC3100 driver sold with our Modulated LEDs for FLIM Microscopy kits is not compatible with the LEDs sold on this page.

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High-Power LEDs on Metal Core PCB

Features

Optimizing Thermal Management