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.
1 Comparing an LED bulb to an incandescent will give you a rough estimate of just how well it will light a room. 2  As a very ballpark figure for LED wattages, 1/4 or 1/5 the incandescent wattage value is usually close to what you need. 3  Lumens-Lumens directly measure just how much light the bulb gives out in total.