Good. So I'll start with what you really want to know. Yes, the reviewer who said these tubes are the brightest for the 3 Cell D Maglite was right and honest. Yes, these bulbs are unusually bright compared to any incandescent bulb you may have used before, making them useful for the constantly tedious but necessary searching for things in the trunk, or under the seat, or under a sofa, or in a scary one and creepy and dimly lit garage, and most importantly to put the flashlight upright on theβ¦