Starting from version 1.7.3 Shapespark allows to import multiple lights from a 3D file (eg. FBX, DAE) as instances of a single Shapespark light.
If an imported light name starts from __NAME__ (any NAME preceded and succeeded by double underscores) it is imported as an instance of a Shapespark light named NAME. So, if in your 3D modelling tool you name your lights as:
__DeskLamp____DeskLamp__.001__DeskLamp__.002
they will be imported to Shapespark as 3 instances of a light named DeskLamp.
Lights imported as instances of a single Shapespark light must be of the same type, so that Shapespark could determine a common type for all the instances. For example, if the model comes from 3ds Max and the first one (__DeskLamp__) is an Omni Standard light, the two other lights must also be Omni Standard lights.