Why violet/purple is not very bright

We know Blue laser light is so amazing. And it can mix 7 color or full color together with green laser and red laser.But its price so high that we can not afford it.

Recently, our violet laser light adopts violet laser instead of blue laser because of cheap price. Certainly, we also noted that violet laser beam is not very bright. It is so dim that we can not see violet or purple laser beam nearly. Is it OK?

Our answer is even if violet laser work cottectly,its bright is also more dimmer than red laser or green laser. Please check below photo:

Of course,You had better change a new if violet was broken totally.