Twinstar E - lower wattage
Twinstar S - does the dominant red highlighting - note many hobbyists wanted more “red effect”, this LED does appear brighter (I think Twinstar says 20%)
I use Kessil Tuna Sun lights - many people complain that their plants don’t get “red” enough under this light
In my experience Ludwigia palustris does get the same red color shown on
Tropica plant page and Rotala ‘Vietnam H’ra’ also develops decent red color (different hues than the L palustris) BUT as in the Green Aqua video, it is the color saturation seen with the ADA Aquasky not anything like Twinstar S rendition
Obviously fish also appear much “redder” under Twinstar S lighting (there are other branded LEDs which also promise strong “reds”) - again this is not my preference ... ember tetras should appear a translucent orange-red not the saturated red appearance given by Twinstar S .... obviously many people disagree with my sentiments
😉 🙂
It’s unfortunate that you cannot see both lights before selecting your purchase - if online order, I’d look for a shop that is good with returns.
Some shops will only do a credit refund (unless product is defective) so make sure they have other products you would like
As you need to turn on the lights to determine whether they are suitable or not, you may have to pay a restocking fee - usually 15-20% these days - and shop may also insist on a credit refund (this is usually stated as package must be returned in sealed condition etc)