Everyone loves a stairway with lights, we won’t admit it, but they evoke childlike excitement among adults. The secret is you can achieve this with minimal cost through LED stripe lights. Simply install under the handrail. Available from Aliexpress, A
Pure White Interior by Susanna Cots. Note the use of lights to make the narrow staircase feel wider. In other designs, the lights are installed on both sides of the staircase, alternating up the steps.