2, The exposing area is 4632cm. 3, Equipped with 8mm Tempered glass plate, resistant to friction;the glass is broken, the glass shards are no sharp, to ensure the safety of operator.4, The timer can set the exposing time, after reach the exposing time, the machine automatically turns off the tubes. 5, The timer have automatic memory function, set in once, whether the number of switch turn on or off, time will save. 6, This machine equipped with 20306cm sponge, used for press the film more closely, place a flat weight, improve the quantity of exposing. 7, Equipped with shading cloth, cover the top of whole machine, block the UV damage to the operator. 8, To ensure the transportation safety of tubes, all tubes are individually packaged in box, when install, remove the glass by sucker, insert the plugs on the two sides of tubes one by one, place the glass and use it. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it's non-workdays, please kindly be patient and wait till Monday.