1. Wall or ceiling mounting 2. Voltage:220V 110V3. Light source: 10LEDS 2×2W4. Lead-acy 6V 4AH5. Emergency duration: more than 300 minutes 6. 24 hours recharge after 300 minutes discharge7. Test switch and charge rate indicator 8. Low voltage battery disconnection 9. Product size:30.8X14X10.1cm