# Electrical ## Batteries | Battery | Shape | Size | Voltage | Capacity | | :-----: | :-------: | ------------------------------------------------- | :-------: | -----------------: | | AAA | cylinder | 10.5mm x 44.5mm<br>0.41" x 1.75" | 1.2 - 1.5 | 800 - 1,200 mAh | | AA | cylinder | 14.5mm x 50.5mm<br>0.57" x 1.99" | 1.2 - 1.5 | 1,700 - 2,800 mAh | | 18650 | cylinder | 18mm x 65mm<br>0.71" x 2.56" | 3.6 - 3.7 | 1,300 - 3,500 mAh | | C | cylinder | 26.2mm × 50mm<br>1.03" × 1.97" | 1.2 - 1.5 | 4,500 - 8,000 mAh | | D | cylinder | 34.2mm x 61.5mm<br>1.35" x 2.42" | 1.5 | 2,000 - 12,000 mAh | | 9V | rectangle | 48.5mm x 26.5mm x 17.5mm<br>1.91" x 1.04" x 0.69" | 7.2 - 9.6 | 175 - 1,200 mAh | | 2032 | button | 20mm x 3.2mm<br>0.79" x 0.13" | 3 | 190 - 225 mAh | ## Brightness | Lumens | Incandescent<br>Watts | LED Watts | | -----: | :-------------------: | :-------: | | 375 | 25 | 4 | | 450 | 30 | 5 | | 800 | 60 | 9 | | 1100 | 75 | 12 | | 1600 | 100 | 17 | | 2600 | 150 | 27 |