You won't be changing from UV to LED because the LED bulbs you will be buying will also have to be UV or your gel wouldn't cure.
LED is a different kind of BULB, not a different kind of light! You don't just buy the bulbs and stick them into your existing lamp, and if your gel is not formulated to be cured with LED bulbs then you shouldn't be playing around with the chemistry.
Use the kind of bulb and lamp that your gel manufacturer recommends, to be sure you are safe and getting a ful cure.
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