Where To Buy
Twinstar 900SA is a high quality full spectrum LED that is excellent for high tech planted aquariums. The SA model features adjustable width while the S model has a fixed width with acrylic legs. Both SA and S are the same light module. The 900SA is suitable for Ultum Nature System's 90B, 90L, and 90P tanks. The S series will offer the strongest PAR output compared to other Twinstar series: B, C, and E. In other words, you can expect the PAR output and price as: S > E > C > B.
Testing video. The Twinstar 900SA Version III model is the same light module as the S series. The only difference is different leg styles. The SA model has a fixed height of about 3.5 inches with adjustable width while the S series has both fixed height and width with a more aesthetic acrylic leg style. Although the product is advertised as having 7050 kelvin, the PAR meter I used shows closer to 6000 kelvins.
34.65" x 4.92" x 4.13" (L x W x H)
88.0cm x 12.5cm x 10.5cm (L x W x H)
Max Mounting Width
43" / 109.2cm
PAR tested using Seneye PAR meter unless otherwise noted in the notes section. Testing process is documented here
March 28th 2021