exceptionally well while others became quaint relics after batteries lost their charge or replacement parts became unavailable.
This may help explain why an item like this may confound some individuals today. Once detached from its mounting bracket and disconnected from any remaining packaging materials, it no longer visually identifies itself as an obviously-designed bathroom accessory. Consequently, it looks more like a toy part, wall hook or broken component from some older appliance.
Possible functionality
A possible light-up Toilet Paper Holder could utilize a small incandescent light-bulb or perhaps an LED in its latter iterations. Batteries would reside either internally within the spindle or at the rear-end of the unit’s base.
Activation of the light could occur via a push-button located at either end of the unit or automatically through motion detection, mechanical pressure sensing or infrared detection (depending on the manufacturer). There were numerous variations in operational methodology utilized by