Sunlight led Exposure unit.
LED UV Eposure unit to burn images day or nightt. 50 watt with black lid and 1-60 min 3 pin analogue timer.
Firstly the most accurate exposure unit on the planet. safe and eco freindly.
Customers can choose from 3 sizes from our webstore. 12″x12″ for A5 and A4 sunlight stencils.
The 20×24 for exposing wooden or aluminium screens. Furthermore a 33 x 42 Eposure unit for burning large images. Customers can buy these items in our webshop.
All 3 are single phase standard 220 volts table top units that emit pure uv light at alength of 365 nanos,blue fluro colour.
Exposure unit 12×12 is 50 watt. The 20x 24 Exposure unit is 200 watt ,further more the big 33 x 44 exposure unit is 600 watt.
Flexabilty of the 12×12 LED Exposure unit
For pre stretched silk screen printing frames wooden or aluminum, what ever size , the lid can be removed, and an images 12″ x12″ can be burnt on that screen . The PRINT SIDE of the frame would have to be covered with a sheet of black card ,black neoprene or black foam ,this stops any light deflecting between the glass, the film positive and the mesh for a clean , sharp and crisp image burn .
The big advantage for a unit of this size is that you can expose and store 6 x A4 size different images on one large screen that has an internal dimensions of 24″ x36″ without having to spend 1000s of pounds.
Excellent for capturing half tones of up to 85lines/inch
The 24″X24″Sunlight uv led exposure unit is 200 watt. This unit is made for exposing ready stretched silk screen printing frames measuring 20″x 24″ x 1 3/4″ profile. The lid when closed completely covers and cushions the frame to achieve a sharp crisp image. With this unit the lid can be removed and larger frames can be mounted on the 4mm toughened glass.
LED Exposure unit… a more green solution.
Other light sources… whats the difference?
Exposure units are an option for the screen printer that manufactures t-shirts, whose art work does not contain very fine lines or half tones. They are usually less expensive and reliable, but a common issue is inconsistent bulb output due to poor connections or worn out bulbs, resulting in underexposed screens. Yearly bulb replacement can be common. It can often be tricky making higher quality high screens with this type of light source, as undercutting of fine lines and halftones is common.
are the next step up from the fluorescent tubes. They are single-point light sources, so they do a nice job exposing fine line detail, or half tones, but average bulb life is only around 3,000 hours, and they produce excessive amounts of heat which can be a safety hazard.
Mercury Vapor units
Mercury Vapour lamps are usually around 1000 watts and work very well. Because they are rich in ultra violet light, and can be classified as a single point light source. As long as the light is close to the screen, it will work admirably. Usually, the screens should be placed no further than two feet away from the unit. Any farther away as a result end up with excessively long exposures. Mercury vapor lights have a start-up time and a cool down time, so there is no instant on/off like you get with a fluorescent unit. These are generally moderately priced units.
units are used by screen printing companies that primarily do very high end work or graphic printers that expose very large format screens. They can consume 1000-8000 watts, and exposure units range from roughly £3,000 to £2,000. The bulbs should be replaced every one to two years. It takes about 20-30 seconds for all of the gases in a metal halide lamp to reach full temperature and full spectral output before you can expose properly, so most units stay on, and use mechanical shutters to control exposures.
“Instant on” systems are available that do not require warm up time, but the more times a metal halide lamp is turned on and off the faster it wears out. Some “instant on” type systems will only get 500 hours of use per bulb. These bulbs can be very expensive, and costs can really add up.
LED Exposure unit has Ultra fast exposures with all types of emulsions.
As a result Exposure times 10-15 times faster than fluorescent bulbs & 25%- 50% faster than metal halide systems.
Long lasting, consistent bulb output. LED lights don’t fade or weaken over time like traditional bulbs. Bulb life expectancy is 50,000-100,000 hours.
Lower power consumption. Less expensive to operate on a daily basis than most other exposure units. Operates at 20% of the power required by metal halide units.
Safety. No excessive heat or high voltage power supplies and shutters needed. This eliminates the need for multiple cooling blowers, keeping you cooler while saving you money!
No Maintenance. LED UV lamps can last more than 50 years. Imagine what you can do with all the savings!
Finally the portion of the light that matters to exposing a screen is the light. Which affects the sensitizer and initiates the cross linking (the bright bluish ultraviolet light- not the white and yellow light). With LED UV exposure technology, there is no wasted white light.
Sunlight stencils our very knowledgable to answere any questions you may have. We are happy to receive any comments.
THE 24 X24 IS FITTED WITH 4MM TOUGHENED GLASS
3 year back to base warranty