The receptors of the retina that allow vision in dim light are the

Explanation

Rods contain the pigment rhodopsin, which is broken down by very low light intensities, and several rods share one sensory neurone so their effects add up, making them extremely sensitive. The price of that pooling is poor detail and no colour discrimination, which is why night vision is grey and blurred. Cones need bright light and give sharp colour vision instead.