CITROËN C4 Handbook page 122

Ease of use and comfort
12 V accessory socket
F To connect a 12 V accessory (max power:
120 W), remove the cap and connect an
appropriate adaptor.
F Turn the key to the ignition on position.
120
Torch
This is a removable lamp, fitted in the boot
wall, which can be used to light the boot or as
a torch.
For information on the boot lamp, refer to the
corresponding section.
Operation
This torch operates with NiMH type
rechargeable batteries.
It has a battery life of approximately 45 minutes
and charges while you are driving.
Observe the polarities when fitting the
rechargeable batteries.
Never replace the rechargeable batteries
with normal disposable batteries.