You should see the specs for this LED.
Lumen min.: 130
Lumen max.: 347.5
Kelvin min.: 7000
Kelvin max.: 7500
mA test.: 350 mA
mA typ.: 350 mA
mA max.: 1000 mA
V typ.: 3 V
V max.: 4 V
Thats 132 Lumens Per Watt. 3V @ 1000mA = 347.5 Lumen. Thats all one die.
They are available on stars to.
Wow.
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