I moved this topic into the general store Q&A section, the original post location is more for buyers/sellers who make transactions with each other on this forum, and not directly with SaberForge, according to my understanding.
Regarding your saber, in theory the 6W Green (green/green) and the 6W Light Blue (blue/blue) should produce a 12W cyan (blue/green).
In my experience, the 6W sabers are brighter than the Hasbro/MR sabers, let alone a 12W! Is your Redeemer fully charged? My understanding is that SaberForge sabers sometimes arrive not fully charged, so you may want to try charging your saber until the charger light turns from red to green and then try comparing the 12W to your Hasbro sabers. Let us know what happens, and we can go from there
I have an empty hilt Redeemer for display and a champion one in medium blue

The Obi-Wan RotS hilt is my favorite design, so as soon as I saw the Redeemer I knew I had to have one! Hope you enjoy yours!