LightCalc is light cost performance calculator.
We know LED or other lights are high performance light but
we dont know how to save money exactly.
LightCalc gives you to answer.
Its very easy to use. You type some information about both lights
(now using light and considering purchase light), power, use hour, etc.
LightCalc is free version. Its version cannot use these function.
+change electric price
+calculate light life price
We will support it on purchase version.