V-Ray ships with several type of light sources, some versatile and some more oriented to studio lighting:
the V-Ray_rect_light is an area light for soft boxes or reflectors simulation as the V-Ray_IES_light simulates accurately a specific brand of incandescent light bulb or fluorescent neon. Any mesh object can emit light with the V-Ray mesh light
NOTE: please watch “vr_color_management_pt2_tone_mapping” tutorial next for dealing with inevitable overexposure issues.
Tutorial to watch next: “vr_light_typology_pt2”