Uhhhh, so i should by the sansi or the JD Spots?
Depends how much light you want. They both Utilize High CRI Cree LEDs and the appearance of a 60° beam angle. Just go by how much lumens or DLI you want or need. What is the light used for?
You said it will replace a 26w CFL, the JD would be more light, and a Sansi will be similar. They do direct light info a smaller cone, which intensifies it, where a CFL shoots it everywhere, so either will be brighter from that aspect alone.
Also, was coming back to link this, as it's a good old article. It's very old, and his statements of we cannot reproduce the sun's full spectrum has changed, but the effects on reptiles is good

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http://www.reptilesmagazine.com/Reptile-Health/Habitats-Care/Reptile-Lighting-Information/
It's the science behind the Arcadia Deep heat. Of which I have seen a few Youtubers, and comments saying it really does work. The infrared seems to make the animals more Active, they seem to recognize the heat source better. Also, a study I seen (have to find it) the other day, said that's why Chams change colors when basking.
They have the ability to reflect Infared. When they bask and turn light, or green that reflects Infared, when they turn black, it's to become a Black Body Radiator.
I think we all knew, they were color shifting as to absorb or reflect light, I personally didn't know they have the ability to reflect infrared, to the point of Zero absorbtion till seeing that.
https://www.chameleonforums.com/threads/chameleons-viewed-in-infrared-lighting.115008/
Chris mentions the study I seen as well. However in that study, they never showed the Chams in question, as to what they were doing at the time. Were they trying to bask, or not. Though I have seen other reports stating all of them can do it, when no longer wishing for heat.
I think with the Advent of LEDs, and the new Deep Heats, we can provide a lighting that is much more natural than ever achieveable before. Infared for heat, full spectrum LEDs and UVB flos, and we can represent the sun in it's entirety.