Ups power station

Ups power stating 450va have 4 type A and 4 type b to charge cell phone have solar charger control plus 3 switch one for usp turn it on 1 for 4 usb 8 usb port Ups price $150.00 4 usb $20.00 2 light switch $14.00 told bix $25.00 battery i buy $80.00. 12volt solar control is $35.00 price need $250.00 not asked about lower price cost more to make it than what i buy part go make for ok