LED Color(option): White / Blue (440nm wavelength) / Green (530nm wavelength) / UV365 (365nm wavelength) / UV395 (395nm wavelength) / UV420 (420nm wavelength). At 10cm height, the light beam diameter is 5cm.At 15cm height, the light beam diameter is 8cm. At 20cm height, the light beam diameter is 10cm. 1 x Light with Dual Gooseneck LEDs. The item "White Green Blue UV 2 LED Gooseneck Lights Illuminator For Digital Microscope US" is in sale since Friday, June 16, 2017. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Microscope Parts & Accessories\Other Microscope Parts & Accessories". The seller is "lapsun_kit" and is located in HongKong. This item can be shipped worldwide.