The light being used is here: https://www.amazon.com/Germicidal-254nm-U-shape-150mm-Purification/dp/B01CV2W12E
Lamp Current: 5.0mA Wattage: 8 watts
It will be hooked up to 2 AA batteries in series The batteries are 1.5 V and 3000 mAh
How long will the batteries last?
My first assumption is to do this: 𝐵𝑎𝑡𝑡𝑒𝑟𝑦 𝐿𝑖𝑓𝑒= 𝐶𝑎𝑝𝑎𝑐𝑖𝑡𝑦/(𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐷𝑟𝑎𝑤)=(3000 𝑚𝐴ℎ)/(5 𝑚𝐴)=600 ℎ𝑟𝑠=36,000 𝑚𝑖𝑛
But that doesn't use the wattage? Is this correct?