4-channel inverter (modified sine wave) 300W Compatible with tool lithium batteries (18V-20V-23V) flat push type. 4 batteries (high voltage to low voltage) are used in turn, and 4 batteries have design power display Electrical protection performance: low-voltage protection (when not working, the battery voltage is usually too low, lower than 15V, and the power is not enough, replace the fully battery in time), overload and over-current protection (automatic power-off protection when the rated power exceeds 300W), Short circuit protection. A. Battery Channel:1-4 Channels B. Battery Input:18V/20V -ion Battery C. DC Output:12V/5A ( Max 10A ) D. USB Output: 2x USB- A:5V/2.1A 1x Type-C: PD3.0,5-12V/18W E. AC Output Rated Power : Modified Sine Wave 300W AC Voltage : 100-120V Output Frequency : 50Hz/60Hz F. LED Light: LED light (10W/6W ) adjustable G. Operating temperature: -10- and 40 I. The product can insert 4 batteries at the same time , start the battery inserted into the channel first . If the channel 1 battery is dead , it will automatically switch to the channel with battery Warning : This product will have a 0.5s pause when channel is switching so it cannot charge any devices during this 0.5 second J. Low voltage protection (when it is not working, the battery voltage is generally too low, 15V, and the power is not enough, replace the fully battery in time), K. overload overcurrent protection (automatic power-off protection when exceeding the rated power of 300W), L. Short circuit protection. M. Battery: For 20V Skirting board (4 PIN interface ) -ion battery: WA3551 WA3553 Colour:black Material:plastic Package Contents: 1 x 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.