This impact wrench has built-in LED lighting. It runs on a rechargeable battery, so it's completely cordless.
From Amazon
Milwaukee M12IR-201B (3/8") M12 Compact Impact Ratchet (1 x 2ah Li-ion Batteries, Charger, Soft Bag), Red
ITS
Milwaukee M12 IR-201B 12V Impact Ratchet, 1x 2.0Ah Battery, Charger & Tool Bag