Direct brightness control via the rotary encoder located in the back of the unit. 4 daily intervals for tubes brightness adjustment. Daylight Saving Time for Europe / US / disabled.Many other models on stock or my by order! This item is in the category "Sound & Vision\Vintage Sound & Vision\Vintage Parts & Accessories\Valves & Vacuum Tubes". The seller is "monjibox" and is located in this country: RO. This item can be shipped worldwide.