A: You are probably correct on this one. One of the side effects of Prozac is drowsiness and so this may be what is causing you to be tired in the afternoon. For some people, this effect does go away after a period of time until the drug levels become more level in the body.
Put another way, LEDs use about 12% of the energy used by halogen and filament bulbs to emit the same amount of light. We can also calculate that a 50 Watt halogen spotlight produces about 600 lumens. An LED light would need to be about 6 watt in power to produce the equivalent 600 lumens produced by a 50 watt halogen. We can now see clearly that a 3 watt LED spotlight would produce 300 lumens, not 600 lumens, so definitely not equivalent to a 50 watt halogen bulb.
Report Abuse. Wattage is what determines the brightness of the light. For example, a 100 watt bulb is brighter than a 60 watt bulb. Lumens is the unit of measurement for that brightness.For example, I believe that a 60 watt bulb gives 1300 Lumens of light.As where 100 watt bulb gives 1450 lumens.or the same wattage, LED light bulb produces much higher lumen than the older type light bulb. Yes, wattage (voltage x current) does matter but only to specific type of light bulb. Ultimately it is the amount of lumen that a light bulb can produce that determine the brightness.