It can memorize your last exposing time setting and repeat time setting. Power calls off by itself when the count-down time is over.
Different brand emulsion will need variety exposing time, operator need to test with this machine and set to the best exposing time. 8 LED UV(ultraviolet) fluorescent lights makes exposure evenly, which guarantees the exposure quality. Timer will turn off the light automatically according to the setting. It will keep this setting and repeat use unless you change the exposing time. Upper surface is covered by 0.3(8mm) high-strength toughened tempered glass board, anti-pressure, uneasy to scratch skins.Once the glass is broken, it will turn into pieces without sharp edges to insure safety. All-metal shell adopts advanced electrostatic painting inside and outside. Elegant outline, convenient to clean and no rust. Specifications: Voltage: 110/220V;Maximum Exposing Area:21x25 inches; Plug standard: US, Canada; Exposure Time range: 1s-9999999s; Item weight: 79Lb ;Note: The maximum external size of your screen frame must be within 25" x 21"x1.5. 20"x24"UV Exposure Unit Exposure Unit is an important tool in screen printing because screen exposure is one of the most important steps to the screen making process. This 20"x24" table top exposure unit combines affordability and quality. With this unit you are able to burn crisp images and bring a professional look to your screen printing shop. The built in automatic timer helps achieve a perfect exposure effect. Working principle: screen printing screens are coated with a light sensitive emulsion using a scoop coater. When the emulsion is dry, place a positive print of your image on the screen. Once you burn the screen, the emulsion that did not get any UV will wash out of the screen exposing the tiny pin holes. The surrounding areas that were exposed to UV will be cured. Hence the ink will pass through screen onto your substrate. Item include: 1 set 21x25 inch LED exposure unit --- 006854 Note: The maximum external size of your screen frame must be within 25" x 21"x1.5 (64543.8 cm). If exceeded these sizes, our exposure unit cannot be covered well, which will affect your exposing effect. This item is in the category "Business & Industrial\Printing & Graphic Arts\Screen & Specialty Printing\Screen Printing". The seller is "wezha-84" and is located in this country: US. This item can be shipped to United States.