Photoelectric effect is E-light. Now an emerging instrument in the beauty industry uses the heat and penetration of light to promote metabolism, accelerate blood circulation, beautify the skin and make the skin smoother. A system that uses bipolar RF to increase the effect on deep tissue, pre-heated by glare, and then treated with RF current. E-light technology combines the advantages of light energy (IPL) and radio frequency (Radio Frequency) and is the latest beauty treatment system. Solenoid Water Valve,Dc Solenoid Water Valve,3-Way Solenoid Water Valve,Dc Micro Solenoid Water Valve Shenzhen DYX Technology Co.,Limited , https://www.dyxpump.com