JD20U Feels Hot During Use
Published at: 2026-05-22
Distance, session length, and comfort tips
Potential Causes
- The device is too close to the skin.
- The session is too long.
- The environment is hot or poorly ventilated.
- The skin is sensitive or not well hydrated.
- The device may need further inspection if heat feels abnormal.
What You Can Do
- Check the distance
Keep the device about 10–20 cm away from the treatment area. If your skin is sensitive, start with 20–30 cm first. - Keep each session within the recommended time
We recommend keeping each session within 20 minutes. Do not exceed 30 minutes. - Use in a comfortable environment
Avoid using the device in hot, humid, or poorly ventilated areas. - Keep your skin hydrated
Use gentle hydrating skincare after treatment if your skin feels dry or tight. - Stop if discomfort occurs
If the heat feels strong or is accompanied by burning, stinging, or pain, stop using the device.
Details
Mild warmth may occur during LED light therapy and can be normal. However, the treatment should not feel painful or burning.
If abnormal heat continues after adjusting distance and session length, please prepare your order number, a short video showing how you use the device, and your device SN code / Serial Number, then fill out the form.
Where to find the SN code:
For the JMOON by Ulike ReGlow Max (JD20U), the SN code / Serial Number is located at the bottom of the device, near the area below the Jmoon logo.
For the JMOON by Ulike ReGlow Max (JD20U), the SN code / Serial Number is located at the bottom of the device, near the area below the Jmoon logo.
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