[ Ссылка ] This video compares the nighttime beamshots of two popular flashlights...the 502b from Ultrafire and the similarly sized, P12 from Nitecore. Both lights are compared equally on high mode, and the differences between low and medium mode are also compared. The 502b uses a CREE XML-T6 LED while the Nitecore has an XM-L2 LED.
This link reviews the Nitecore [ Ссылка ]
This link reviews the Ultrafire [ Ссылка ]

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