3Delight supports Maya's standard lights. There are two exceptions: the Environment Light is 3Delight-specific and ambient light is not supported. To these standard Maya lights, 3Delight adds some additional controls (e.g. exposure, light focus, ...) in the 3Delight section of each light.
3Delight's Unified Sampling
You will notice that there are no sampling parameters for light sources in 3Delight. 3Delight's unique Unified Sampling algorithm simplifies greatly the control of noise in the image by providing a single parameter in the Render Settings that acts on all shading components, including lights.