Why CAMECO: More number of LED's than others, and each LED filled with 2*850nm and 1*660nm beads. The spacing between the LED's is less than 1/2 to 1 inch. If they the space more than 1/2 to 1 inch, then you are not exposing enough of your body to the RED and NIR light, you are only treating "spots" and will not get the effect. The LED array needs to be tightly compressed, and CAMECO light-therapy wrap meet the requirement Time & Temperature Setting: 10min, 20min and 30min time setting, time is up, the product will auto shut-off. 39℃±2℃, 43℃±2℃ and 47℃±2℃ temperature setting, with the blessing of temperature, the effect is better. 67''×16'' Large Size: This LED red light device is suitable for most people. Every flat and firm area can be a place to relax. Wide Voltage: AC 100 - 240V for convenient use in all over the world. Enjoy the light therapy anytime and anywhere. Achieves a happy life. Ideal Gifts Choice: This product is unique and upscale as a gift for your lover, parents, elderly, friends, etc. You just need to laying on the mat. No more than 30 minutes each time and 1-2 times per day. Before the next therapy, you should rehydrate and cool your body, take a rest to get a better relaxation. 1