Cree: Difference between revisions
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==XB-D== | |||
Very compact LED (the chip the die is mounted on is 2.45 mm square opposed to 3.45 mm square for XP series) introduced in February 2012, promising lower cost. Should provide similar brightness to XP-E LED's. First available units were warm white with Q2 brightness bin (at 350mA). [http://www.cree.com/products/pdf/XLampXB-D.pdf Datasheet] | |||
==XM-L== | ==XM-L== | ||
[[File:Cree-xml.jpg|thumb|Cree XM-L LED with 6 yellow strips and 3 brass bonding wires]]Larger die LED | [[File:Cree-xml.jpg|thumb|Cree XM-L LED with 6 yellow strips and 3 brass bonding wires]]Larger die LED first available in November 2011, offering efficiency of 160 lumens per watt at 350mA. Output is 260-280 lumens at 700mA (bins T5 and T6) therefore it is more efficient and puts out more light at any current than earlier single-die Cree LED's. However the biggest improvement to overall output is the XM-L can be driven to 3000mA for 910-975 lumens of output. The LED die is 2mm x 2mm on a 5mm x 5mm substrate with 6 yellow strips and 3 bonding wires as opposed to the XP-G with 4 strips and 2 bonding wires and the XP-E with 3 strips and 2 bonding wires. The first production lights to feature the XM-L were versions of the [[ThruNite]] Catapult V2 (first to ship), [[EagleTac]] M3C4, a [[4Sevens]] Quark MiNi, and the [[JETBeam]] M1xm, introduced in December 2010, but budget retailer KaiDomain had LED's and [[P60]] drop-ins as well as P60 lights around the same time. Neutral and warm tints began shipping in March 2011. [http://www.cree.com/press/press_detail.asp?i=1271079100891 Press release] [http://www.cree.com/products/pdf/XLampXM-L.pdf Cree XM-L datasheet] | ||
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