Mostly all flashlights advertise in lumen though? I suppose you mean light bulbs?
Yes, I mean the bulbs. Generally in the US at least we find them in the store labeled like "40 watt equivalent (small print: 2.1W)"
Yes, I mean the bulbs. Generally in the US at least we find them in the store labeled like "40 watt equivalent (small print: 2.1W)"