school essential: [50cm long] ten speed three colors can be adjusted at will(在校必备：【50CM长】十档三色随意调) dormitory dedicated: [45cm long] ten speed three colors can be adjusted freely(宿舍专用：【45CM长】十档三色随意调) [35cm long] the third gear white light-adjustable brightness(【35CM长】三挡白光-亮度可调) [35cm long] the third gear warm light-adjustable brightness(【35CM长】三挡暖光-亮度可调) [30cm long] the third gear white light-adjustable brightness(【30CM长】三挡白光-亮度可调) [30cm long] the third gear warm light-adjustable brightness(【30CM长】三挡暖光-亮度可调) [30cm long] a white light-brightness is not adjustable(【30CM长】一档白光-亮度不可调) [30cm long] first gear warm light-brightness is not adjustable(【30CM长】一档暖光-亮度不可调) [20cm long] no consecrated dark light(【20CM长】无开光暗光)

[send installation package upon order]](【下单即送安装包】) [send installation package + special plug]](【送安装包＋专用插头】)