You can choose which direct-thermal-path copper MCPCB size you would like this LED on.  Please see the options, below.

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This LED is available on the following MCPCBs:

1. 16mm DTP CU (No Wires)
2. 20mm DTP CU (No Wires)

LED Description:

• Osram CULPM1.TG BOOST
• Color temperature: 6000K-6500K
• Tint: Cool-white

Osram CULPM1.TG BOOST white flat LEDs offer even more thermal performance than the CSLPM1.TG with an identical sized die. 

This LED gives you more throw than any XP-L HI, but with a lot more lumens than the CSLNM1.TG 1x1mm LED.

Absolute maximum drive current if kept cool is around 8A.  In a smaller host, it is recommended to keep the current around 7A (this can be done by using a battery with more resistance and by increasing spring/wire resistance).  

Specifications:

• Osram CULPM1.TG BOOST LED
• Rectangular Die
• Domeless
• Forward Voltage:  3.25-3.50v @ 6A
• Luminous Flux:  ~1500 lumens @ 6A
• Electricall isolated thermal pad