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By certification 
Advantage:
1.COB + 3W chip
2.CREE chip – 460nm, light macro chip – 630nm 660nm
3.Better heat dissipation. Pure aluminium radiator, Pure aluminium plate & Fan heat sink & aluminum shell, perfet cooling system together.
4.Dimmable or non-dimmable for your choice.
5.All is private mould
6.Unique apperance design.
1.COB + 3W chip
2.CREE chip – 460nm, light macro chip – 630nm 660nm
3.Better heat dissipation. Pure aluminium radiator, Pure aluminium plate & Fan heat sink & aluminum shell, perfet cooling system together.
4.Dimmable or non-dimmable for your choice.
5.All is private mould
6.Unique apperance design.