Particle Emitter Scale Color/Life Value clamped?

Hello everyone !

I’m trying to make a simple particle emitter that I can control in my Blueprint to change its brightness.

Now the issue is that in BP, the Set Color Parameter clamps the Value to 1, removing all kind of brighness that my Color/Life module had initially.

So I have this bit of BP that is linked to the parameter in charge of the color in the particle emitter.

This is what it looks like if the BP is enable. Note that the blue color is intended just for testing purposes.
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And this is what it looks like with the SAME 10 000 for value, but red instead of blue, If I disable the BP. In this case, the color and brighness come from the Scale Color / Life in the emitter. The brighness is only removed if I try to control it over BP.
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But I’m not sure to understand the solution and nothing seems to work here.

Is there any way to remove that stupid clamp ?

Thanks !