... to operate Emergency power: 5 x 1.2V, 1.8Ah Ni-Cd battery Illumination time: 120mins 1)Full fire-resistant material, constant ... -, over-charge and over-discharge protected3) Long-life non-corrosive Ni-Cd battery4) Easy to be maintained, convenient to operate, very ... %, 50Hz8) Emergency power supply: 5 x 1.2V, 1.8Ah Ni-Cd battery9) Rated voltage: AC 220V, DC 6V10) Switching time ...