What I meant was that the heat to output ratio is not really a good ratio in leds. That led your looking at is known as the cree and yes 400 lumen is alot and putting 6 does theoretically output 2400 lumens but a standard 4200k 35w hid set puts out 3200lm. But you are right about leds, unless they can be focused in a certain direction, they are not going to be usuable.
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