The average of the flashlight lifetime
66389
A flashlight's lifetime
33926
Calculating resistor value and power rating for LED driving
112108
About The Lighting In Arda After The Destruction Of The Two Lamps
86156
Do photons have a duration?
28882
Atmospheric lighting in cycles
134911
changing the intensity falloff of light sources using Cycles nodes
106173
What is a "diffraction limit"?
130932
Effective Refractive Index
20086
Why is the amount of light a lens lets in called the 'lens speed'?
140568
Calculation of the avalanche effect coefficient
144081
Which relay will last the longest?
102477
How to calculate Lux from EV?
96722
Finding UMVUE of $\theta$ when the underlying distribution is exponential distribution
5889
Ideal charging / discharging percentage for maximum battery life?
123605
Relation between intensity of light and refractive index
80030
Do SSD's really last 285 years?
102563
Precision of Coulomb's law