Parameter Voltage: 110V Power: 22w Lens Diameter: 5 inches（127mm） Base Support Size：11.81inch x 7.87inch（30*20cm） IC constant current power supply provides stable current for LED beads to ensure that the beads are not damaged by unstable voltage and can be used more safely to extend the life of the beads. Stainless Steel ,rust resistance. 360° Rotation Axis adjust height and rotato in every direction The 5 inch diameter lens, is made of genuine white glass - scratch, warp & heat resistant . Read more DUST COVER & ROTARY BUTTON A dust cover at the top, provides the amplification light with a better protection, and the rotary buttons above the support and at the turning point make the arms easier to move depending on your needs. 100% after-sales protection. Read more