144pcs high quality led ring light Specification:Outer diameter : dia98mmInner diameter: dia61mmWattage:4.5WInput voltage:90V-264VOutput voltage:DC12VBrightness adjust:0-100%Working distance:40-250mmQuantity of LED:144PCSBrightness:20000Lux at height of 100mmColor of...

zoom objective 0.75X-3.5X ,zoom ratio:4;1 SQF-LII is a new modal of stereo zoom microscope. The ratio is 4:1,can be widely used in electronics and precision machine industries for assembling and inspection of products .In particular it is suitable for micrographs and observation...

zoom objective 0.75X-3.5X ,zoom ratiol 4:1 SQF-LII is a new modal of stereo zoom microscope. The ratio is 4:1,can be widely used in electronics and precision machine industries for assembling and inspection of products .In particular it is suitable for micrographs and observation...

high quality plan achromatic objective High quality plan achromatic objective more than15years  history Plan objective ...

zoom objective 0.65x-6x,zoom ratio:9.2:1 SQF-Dx Series of Stereo Zoom Microscopes, The objectives of instrument charge the magnification continuously range of 0.65x to 6x; zoom rate 1:9.2; working distance 100mm. It may be used in electronic industry,scientific research and so on....

SQF-T Series of Stereo Zoom Microscopes, The objectives of instrument charge the magnification continuously range of 0.7x to 5x;       SQF-T Series of Stereo Zoom Microscopes, The objectives of instrument charge the magnification continuously range of 0.7x...

4 Zone LED ring light for microscope illumination ,best seller This product has 4 mode to control the light , and brightness adustable for each mode .Outer diameter :dia98mmInner diameter: dia61mmWattage:4.5WInput voltage:90V-264VOutput voltage:DC12VBrightness adjust:0-100%Working...