LED chip is one of the most core components of the flashlight, which determines the colour temperature, lumen, energy consumption and other key indicators of the torch.When it comes to LED chips, we can’t avoid the American cree company.
cree is a leader in LED chips, it was founded in 1987, is a U.S. listed company (1993, NASDAQ: CREE), is the world’s LED epitaxial, chip, packaging, LED lighting solutions in one of the famous manufacturers and industry leaders. Each generation of products it releases represents the most cutting-edge process and technology of LED chips. However, on 19th October 2020, CREE announced on its official website that it has reached an agreement with SMART Global Holdings, Inc. and plans to sell its LED Products Business Unit to SMART at a price of $300 million, but that doesn’t stop us from discussing each generation of products it releases.
L2 is short for XM-L2, a type of LED chip encapsulation process, and is the second generation of the XM-L encapsulation process. Different encapsulation process looks different, different encapsulation process according to the light efficiency and brightness is divided into 14 levels, in 700mA current, brightness increases about 20 lumens per division of a grade, each grade with a combination of letters + numbers, from S2, S3, S4, S5, S6, T2, T3, T4, T5, T6, U2, U3, U4, U5.
Taking XM-L2 as an example, there are almost no S-groups with lower luminous efficacy levels on the market, and the most common ones include T5, T6, U3, U4, U5.
