The DCK280C2 20V MAX* Lithium Ion Compact Drill/Driver / Impact Driver Combo Kit (1.5 Ah) features a two-speed transmission and LED lights for working in dark spaces. 20 Volt Max (18V nominal Volts)Two speed transmission 0-600/0-2,000DCF885 20v 1/4 in.impact driver features LED light (2) 20 Volt Max. Lithium-ion 1.5 AH battery packsTwo speed transmission from 0 to 600 RPM and 0 to 2,000 RPM350 watts1/2 in. ratcheting chuck with carbide inserts provides superior bit gripping strength reducing slippage during high torque applicationsImpact driver includes one handed loading 1/4 in. hex chuck which accepts and holds 1 in. bit tips