lambent

Flickering lightly.

Having a gentle glow; luminous: synonym: bright.

Light or brilliant.

Licking.

Hence Running along or over a surface, as if in the act of licking; flowing over or along; lapping or bathing; softly bright; gleaming.

Playing on the surface; touching lightly; gliding over.

Twinkling or gleaming; fickering.

Brushing or flickering gently over a surface.

Glowing or luminous, but lacking heat.