Specifications:
1) Automatically illuminates and charges battery when main power fails
2) Built-in over-charge and over-discharge circuit ensures that
battery remains in good condition
3) Uses maintenance-free SLA battery

Primary technical parameters:
1) Input: AC 220V 50Hz
2) Power: 4.5W
3) Backup time: 6 - 8 hours (single lamp in use),
3 - 4 hours (double lamp in use)
4) Lamp type: 6V, 0.75A
5) Battery type: 1 x 6V, 4Ah
6) Backup transfer time: 0.5secs