Description:Nichia NVSW219BT-V1 R9050 D220 LEDs on Noctigon 3XP MCPCBColor temperature: 5310K-4745K (SW50)CRI: Minimum 90, R9: Minimum 50Tint: Neutral whiteDirect thermal pathWide heavy copper traces, 3Oz !User configurable LED connection, parallel or seriesEasy wire connection, only 2 leads.Gold plated pads and copper coreFlat bottom surfaceSuitable for indoor, outdoor and flashlight useCompatible with Carclo 10507, 10508, 10509, 10510 and 10511 opticsDiameter: 20mm, Thickness: 1.75mmSilicone insulated leads already soldered, each 5cm long, 22 AWG, High Temp, 60 strandsGold plated surface mount copper jumpers now available (very low resistance and no oxidation)Noctigon boards run the LEDs much cooler allowing a longer lifespan or higher driving currents. The boards can be soldered to brass, copper or other materials eliminating the typical thermal paste or typical thermal glue which has a very low thermal conductivity, thus creating an exceptional thermal path for your LEDs. As a result of a lower LED temperature, brightness is increased especially towards the max official current ratings or above.