United States: 30 – 40 days. Europe: 25 – 35 days. Military lamp USSR with Dimmer and Voltmeter 0-15 volts. I made the case of the lamp from the case of the Soviet military dosimeter DP-24 from Bakelite. The lamp is made in vintage style and has small scratches and scuffs on the body. The lamp works at a voltage USA of 110 Volts. The lamp can be equipped with a voltmeter with a scale of 0-250V or 0-15V. If the lamp has a voltmeter a scale of 0-15 volts. Then the readings of the device must be multiplied by X10. Bulbs are not included in the package!! The Voltmeter installed in the lamp was made in the USSR in the 80s. After my refinement, this voltmeter was equipped with LED backlight. The Voltmeter allows you to monitor the voltage in your home electrical network. This feature will help determine how stable you are provided with electricity. Many household electrical appliances cannot be used during power surges, for this reason they can break. To turn on 2 Bulbs, you need to activate the toggle switch on the left side. To make the glow of the bulbs more or less, you need to turn the Dimmer knob. Located between the bulbs. To turn on the backlit Voltmeter, you need to activate the toggle switch on the right side. If necessary, you can include only one voltmeter. In complete darkness, you can easily find a lamp and turn on the light!! It is recommended to use E27 type incandescent lamps with a maximum power of up to 60 watts for this lamp. You can also use special – dimmable LED lamps. Ordinary LED lamps will not work properly!! On such lamps it is impossible to control the brightness!! They will only shine brightly without dimmer control!!