ThinkPad Yoga Chromebook USB-C/Type C Laptop ChargerParameter:Input:100-240V,1.6A,50/60Hz,Output:20V-3.25A;15V-3A;9V-2A;5V-2A;12V-3.Maximum output is 65WNote:Sometimes when plugging the charging plug into the wall,There will be a little spark on the pins,it `s just normal,If you are worried about insecurity,You can plug the power plug into the power distribution board first,Then connect to the computerCompatibility:Lenovo Yoga 720 (13" ONLY);Lenovo IdeaPad 720s (13" ONLY);Lenovo Yoga 370 910 920;ThinkPad Yoga L380 X380; A275 A475 E480 E580 P51S T470 T470s T480 T480s T570 T580 X270 X280;ThinkPad X1 Tablet, X1 Carbon GX20P92530 4X20E75131 01FR027 ;Chromebook N23 Yoga / Flex 11 Chromebook / ThinkPad 13 Chromebook 2nd Generation / 11e Chromebook 4th Gen；Chromebook 100e 300e 500e c330 c340 c340-11 c340-15 s330 s340 s340-14 touch s345 s540 c740 c940 s940 14w 14e S345-14AST；Other Type C/USB C devicesDue to too many models, it cannot be fully presented. If there is no model of your laptop above, please contact our professional online customer service for consultation.Description of product warrantyRules of warranty1.In case of normal operation and use, if there is a fault,You should contact us by email as soon as possible.We promise 1 year guarantee,Please do not disassemble and repair without permission.2.Under the following circumstances,it is not covered by the warranty.-More than one year from the date of purchase;-Damage caused by human factors,including use in abnormal working environment.Damage caused by not following the instructions, etc;-Users disassemble it without permission.Self - repair.NotePlease do not let the charger touch the liquidPlease do not disassemble without permissionAvoid falling from heightsAvoid use in extreme temperaturesIt is normal that has certain temperature increasing during use.