Thank you everyone that replied, for future reference I'll leave it here...
llSetPrimitiveParams([
PRIM_TEXTURE, 2, "00000000-0000-0000-0000-000000000000", <1.0, 1.0, 0.0>, ZERO_VECTOR,0.0,
PRIM_SPECULAR, 2, "00000000-0000-0000-0000-000000000000", <1.0, 1.0, 0.0>, ZERO_VECTOR,0.0, <0.502, 0.502, 0.502>, 100, 0]);
Again for some reason I didn't find it in the literature any correct examples of syntax, for a new comer that is very hard to figure out.