Specification: Brand Houde Capacity 40800m Ah Dimensions (LWH)165x 80x 175mm Built-in Battery High Quality Lithium Polymer Batteries Input Voltage 15 V Output Voltage 220 V Output Current 1AOutput Power 150 W Frequency Range 50 Hz Lifecycle 500 time Security & Maintain:a) Do not short-circuit the unit. To avoid short-circuiting, keep the unit away from all metal objects (e.g. coins, hair-pins, keys, etc.).b) Do not heat the unit, or dispose of it in fire, water or other liquids. Keep away from high temperatures. Do not expose the unit to direct sunlight.c) Keep away from high humidity, dusty places.d) Do not disassemble or reassemble this unit.e) Do not drop, place heavy objects on, or allow strong impact to this unit.f) This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience & knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.g) Children should be supervised to ensure that they do not play with the appliance.h) Do not cover the device with towels, clothing & other item.i) The unit may become hot when charging. This is normal. Use caution when handling.j) Do not charge the unit over the required time.k) Disconnect the unit when fully charged.l) Use the unit properly to avoid electronic shock.m) Please deal with scrap products in accordance with the regulations, do not treatment the built-in battery as a household garba