To create HDR textured light:1. Create Polygon Object (ie. quad)
2. Create Corona Light Material, use your HDR texture in Emission channel, Texture slot.
Within "Emission channel > Include/Exclude" you can set which object will be affected by the emission shader.
Note: Only applies to direct paths/rays. Secondary paths/rays are kept visible.
To further control/manipulate Emission visibility use Advanced settings.
3. Apply material to the geometry. Map as you please.
e.g.
& stay well