Deca d

The prefix was a part of the original metric system in 1795. It is not in very common usage, although the deca pascal is occasionally used by audiologists . The deca newton is also encountered occasionally, probably because it is an SI approximation of the kilogram-force . Its use is more common in Central Europe . In German, Polish, Czech, Slovak and Hungarian, deka (or deko ) is common and used as a word on its own, always meaning decagram . A runway number typically indicates its heading in decadegrees .

"Out of the box, the Deca Drive oozes with typical Lezyne quality and attention to detail. The light is housed in a CNC'd aluminum shell and offers well thought out features like metal hinges and a sealed battery port. The battery port also doubles as a home for the USB charger connection. The light shroud has cooling fins machined into it which help keep temperatures down; and with three LEDs being powered to a max 800 lumen it can get pretty warm. Included in the box is a spare battery, two sizes of handlebar mounts ( and ), and a micro USB charging cable."

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