... Magnifier, Shadowless Lamp, Light Source, Examination Lamp, Microscope etc Halogen Cold Light SourceSwitch -on/off power supply, steady voltage ... 270*120mmPackage Size: 400*385*220mmNet Weight: 5.66kgTwo bulbs switch over freelyWork steadily, safe and reliableXD-301-2 ... 290*120mmPackage Size: 400*385*220mmNet Weight: 6.4kgTwo bulbs switch over freelyWork steadily, safe and reliableHigh brightness, good ...