Duo Combo Jewel and Melon Resin 
● One standalone UV-LED resin curing with both LED light(405nm)
   and UV light(365nm).
● Curing faster 
● high transperency clear color resin with long-lasting non-yellowing protection.
● Cured resin is durable, waterproof product.
● Work with soft PP molds and silicone ones.
The easiest way to cure this Jewel Resin is to use a UV-LED lamps (LED nail lamp), you can use even 6W LED lamps. (only use a 6-90W UV-LED nail lamp). There's no need to expose them to the sun to cure them.
 
How long lasting resist to yellowing
According to the Lab's test by exposed resin's objects to
intense UV light continuously for 24 hours. 
Jewel Resin : The objects begin to turn yellow after two months.
Melon Resin : The objects begin to turn yellow after two months.
 
Precaution 
Melon resin can curing faster than Jewel Resin which means Melon resin may cause overheat during that process. To avoid getting burned by overheat,
cure melon resin objects  short time (10sec, 30sec) or using low power UV-LED lamps and leave them to cool it off.
● Keep Melon Resin out of reach of pets and children.
● Work in a well-ventilated space and avoid working near a window or in a location     where the sun is directly overhead.
● Avoid direct contact with skin. Wipe the resin with tissue or ethanol wipes, and      then wash with plenty of soap and water. If in eyes, rinse with clean water.
● avoid getting burned when curing, leave them to cool it off.
● Don't use too much colorant (should not over 10 percent )

Using instruction
Jewel and melon are green,not flammable, environment-friendly and economical liquid product.No any organic solvent included. These liquid will not cause any 
degeneration harm to poison, cancer or pathogenesis to human body. no danger of any poisonous.
●To avoid the rein from being disposed of on your workspace, use a plastic clear sheet or a silicone mat. Make sure you don't get any resin on your clothes. The resin may stack after drying, making it impossible to remove from the clothes.
● Both are safe for pregnant moms and the elderly but please take some rest and refreshment breaks if you work for long hours:)