Luminous HKVA Inverter for Home, Office & Shop with Luminous Battery, Optimus 4500+ Pure Sine Wave 4000VA,48 Volt Inverter with Inverlast ILTT28060 Tall Tubular 250 Ah- 4 Batteries Combo Capacity - 4000 VA, Maximum bulb load - 2850 W Technology - Sine Wave Technology No of battery supported - Four (4) Battery (12V each) Display: State of the art LCD display which shows real time Inverter battery performance statistics Charging current: User settable charging current between (8A-21A) for optimized performance. Optimized performance: User settable Output voltage between (200V-240V) to optimize between Longer Backup time and Performance Mode selector: Eco and UPS mode availability Safety for your home: Complete safety for your home with protection features and alarms on short circuit, overload, Over temperature and low battery and safety for your equipment's as it supplies grid like power to the connected load Battery Supported: Supports all Battery types (Flat, Tubular and SMF) and all battery capacities (80Ah-250Ah) Inverlast range of heavy-duty, Tall Tubular batteries are designed to support heavy load of electrical appliances during long & frequent power outages. These batteries contain special grade Lead alloy and are suitable for both HRD & SFC application. These batteries are designed with Orthogonal 3D grid for unmatched electrical performance. Best-in-class battery offer from LUMINOUS TT battery portfolio - Ultimate comfort during power cuts ● Range of LUMINOUS Batteries with high acid reservoir resulting in reduced need for water top-up even in extreme environmental conditions ● Made in HPM container with Virgin PPCP, ensures ultra-durability and acid resistance ● Heat Sealed Container & Cover, for no acid leakage ● Most rigorous 3F quality check, before it reaches you - All batteries are ALT, SCT, HRD test passed ● Tower type TT container, ensuring highest OTP electrolyte level ● Orthogonal 3D grid design for unmatched electrical performance ● Provided with 6 nos. free indicators cum vent plug for simultaneous level indication and gas ventilation