... accordingly,with CE and RoHs certification. LED Portable sample Case,Portble LED Light Case,led bulb ... case according to your design1,Cool color watt meter 1 and 2 is more expensive,The ... the same,the difference is color meter 1 show all datas on one screen ... and color meter 2 show one by one on few ... screens.2,the white watt meter is cheaper,it just could show:power,curent ...