Multi function Inverter: This inverter can convert 21VDC power into 220VAC current, which is suitable for all kinds of outdoorwork and small home appliances. Intelligent Fastcharging: With dual motor design, it can realize fastcharging, which greatly improves charging efficiency. Safety Guard: With an upgraded intelligent chip, over temperature protecting, and constant temperature charging, to use. The inverter has built in eight intelligent safety protections systems that can automatically distribute current and voltage to improve the safety of electricity. and Heat Sink Design: The inverter adopts a design, easy to carry and store, great for outdoor use. The convection heat sink design, even if for a long time, it not heat up, ensuring the safety of use. Name: Li Battery Inverter Power: 120W (peakpower 300W) Input voltage: 18-21VDC Quiescent current: 0.05A Voltage display: 5V-30V (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:plastic Package Contents: 1 x Battery Inverter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.