I am happy with this K&F RGB lamp. I ordered this RGB lamp to hang photos of the products I am testing. The build quality is good. I will position this device in the mid-range. It is very light with 193 grams (manufacturer data). It is very thin (about 17 mm) but it can be placed straight on a flat surface without it falling off. Its thinness allows us to take it everywhere without taking up much space in our belongings. Its power of 12 watts is sufficient for the use I have. It produces lighting whose temperature varies between 2700 and 7500 K. It can also reproduce 13 light effects. The small screen that visualizes the autonomy, the power emitted, the effects used etc... is of good quality. The use of this lamp thanks to its simplified navigation in the menus is pleasant. The battery can also be used as an external battery thanks to its USB-A port but I will avoid using it as such because the battery capacity of the lamp is only 5000 mAh. I prefer to preserve it to use its lighting as long as possible. In addition, its recharge time is quite long since it takes about 2 hours and a half to fully recharge it. The lamp is equipped with two ¼” thread holes that allow the supplied cold shoe adapter to be screwed on. The only drawback I find with this lamp is the lack of a softener. So I use this lamp mounted on an articulated arm and attached to my computer monitor. I will use it most of the time to produce white lighting. In my opinion, this lamp is limited in the number of colors but that is not a problem for me. Its price is justified.