The heat produced by our Infrared heat lamp does not utilize high heating temperature, yet still allows excellent Infrared penetration through the skin. TDP works with coil heat and a mineral plate (no light bulb needed). The Mineral Plate (6.5" in diameter, life span of up to 1,500 hrs) emits Far Infrared Rays when heated. Please wait at least 10-20 minutes for heat. Typical treatment sessions should last a minimum of 40 min per area. 110V Detachable head - simply unplug the cord that connects the head and the main frame when replacing. The lamp is equipped with an anti-tilt switch to comply with mandatory safety requirements. The lamp will operate only when in an upright (vertical) position and will NOT turn on if tilted or placed horizontally (laid flat). For safety reasons, the anti-tilt switch is designed to automatically cut off power when the lamp is tilted, tipped over, or improperly positioned. The heating tube does not glow in a full circle. It glows only in its U-shaped (horseshoe) form, which is normal. *NOTE: Important: Please make sure to wear light clothing when using to prevent burns. DO NOT USE ON BARE SKIN. 1) Please note that the heat lamp will take approximately 15 minutes to warm up. After preheating for 15 minutes, please allow an additional 5 minutes for the temperature to increase. 2) As a general guideline, the distance between the treatment surface and the heating head should be approximately 8-10 inches. Actual positioning of the TDP head may be adjusted to reach the desired level of heat. Do not position the lamp head too close to the skin. 3) A minimum of 40 minutes per treatment session on the targeted area is recommended. Please note that the treatment time for a given session may vary depending on the condition being treated. 4) The heat lamp only provides warmth for therapeutic heat treatments. Please do not expect a higher temperature range as higher temperatures may cause the skin to overheat and burn. Higher temperature ranges will not increase the effectiveness of the treatment. Replaceable/detachable head.