This under-desk mounted panel type heater works on the principle of natural convection. The heater uses non-conducting materials and is hot to touch but does not burn and is triple insulated for electrical protection. It provides gentle heat to the space under the desk over a longer period of time and is designed for office applications. It can be used in conjunction with a separately purchased plug-in type thermostat.Note: The table needs to have vertical sides on 3 sides and must be either hard wood or metal.Sepcifications:-Electrical data: 100 Watts (340 BTU), 120 volts, 0.83 Amps ��_��_��_ Uses only 0.1 Kw/hr of energy-Weight: 6 Lbs Product weight-Ideal Application: Space under an office table.-Dimensions:17.5" W x 11.5" H x 0.5" D Product dims-Approval Granted : ETL, CE &CBFeatures:-UL & IEC Approved and RoHS compliant.-Energy-Efficient - All electrical energy is converted to heat-Save up to 50% on office heating costs.-Set central thermostat lower than usual by about 5 to 10 degrees.-Turn ��_��_��_ON��_ the Amaze Heater-Save money by not heating entire office!-Heat Reflector included - This self adhesive reflective sheet reduces heat loss into the back surface and increases heater efficiency.-Heating element much cooler than radiant heaters. As a result, no change in Oxygen levels!-No fan and hence, no dust re-circulation AND no noise!-No moving parts and designed for continuous operation and no maintenance!-Ezymount ��_��_��_ Patented drill-less mounting system (included)-No need to drill holes in your back surface-No tools needed to install the heater-Ideal for Asthma and Allergy sufferers as there is no fan and hence, no dust re-circulation.-Triple insulated for electrical safety.-Safer than radiant heaters ��_��_��_ Lower surface temperature (less than 185��_F) will be hot to touch but will not burn due to use of non-conducting materials.-No glowing element ��_��_��_ Oxygen level not changed.