Feature●【Full Aluminum Panel】The heat sink panel is special designed base on full aluminum material with surface oxidation treatment, it will help the lamp to dissipate heat very well.●【Dimension】 12.87x7.75" (326x195mm), 10mm height.●【Compatibility】The screw holes are special made for KOQ QB288 120W Series LED PCB Board (Include LM281B+ LM561C , LM301B , LM301H series), use M4 screws to fix (not included). It could be used for other product or application which mounted by thermal conducitve glue (Not included).●【Note】Before you order, please confirm if this heat sink size fit for your light pcb board●【Application】288LEDs pcb board, Include LM281B+ LM561B , LM301B , LM301H LED PCB boardDescription