This impact wrench has built-in LED lighting. You don't need to bother with a cord, since it runs on a rechargeable battery.
From Amazon
Bosch Professional BITURBO GDS 18V-1050 H Cordless Impact Wrench (1050 Nm Tightening Torque, 1,700 Nm Breakaway Torque, excl. Rechargeable Batteries and Charger, in Carton)
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