Spot replacement cost calculator

Adds lamp price and individual replacement labor.

C_{\text{spot}} = L + S

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

C_{\text{spot}} = 8 + 12 = 20

Symbol	Meaning	Unit
$C_{\text{spot}}$	cost per lamp over rated-life basis	$/lamp
$L$	net lamp price	$/lamp
$S$	spot labor cost	$/lamp

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.