Using automobile analogy to explain flashlight/battery terms

Hot Brass

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Ontario,Canada
Maybe this should go in the "newbie" section or not,but...... I understand pretty well how an automobile and it's engine works,but not sure about flashlights and their electrics. using some automobile terms and how they relate to flashlights and their components may help,probably me for sure.....so I got to thinking and I have these analogies:
-Battery capacity (mAh)=gas tank
-Lumens=horsepower
-Lux=torgue
Ran out....any more?? Thanks,HB
 
Horsepower is work done over time and torque is turning force.

I am trying to figure how it all could fit in the analogy but I have an idea.


so to me it goes

Battery Capacity = Gas Tank

Lumens = Torque

Lux = Horsepower (the higher the RPM the higher the HP[torque dependant])

Lens/Reflector = RPM range (flood beam is low RPM and a tight beam is high RPM)

Battery Type = Fuel type (most sports cars can't run 87 octane(alkaline) and most econo cars cant run race fuel(18650 3.7v batteries))

I will try to think of more...
 
I think you may be better to stick with the old water analogy.

 
A few years ago I gifted a Pila GL2 to a good friend. It had a Pila LED dropin from maybe 2008. Almost a year ago I gifted him a new LED dropin with a XP-G LED. Everytime I asked him if he exchanged the dropins he said something like he´d use the original Pila dropin until it wouldn´t work anymore, never getting my explanations about efficency, lumens, runtime. Each time the same reply until I told him it´s like he´d be driving an old VW Golf 3 with 50PS, 12L/100km mileage and 120 km/h maximum speed and someone would gift him a new Golf with 120PS, 6L/100km mileage and 200 km/h maximum speed and he´d say he´d drive the old Expletive deleted - Norm until it wouldn´t work anymore and only then start driving the new Golf. This analogy he did understand - unfortunatelly he couldn´t remember where he put the new XP-G dropin......

So using autombile analogies for the layman can indeed be helpfull. Although I don´t think refering specific units to units used with auomobiles will lead to a clearer understanding.

Eric
 
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