No. All Holmes™ heated blanket's should be directly connected to a 110-120 volt outlet.
Your Holmes™ heated blanket is designed to provide the appropriate heat to help maintain your body's own warmth and to keep you comfortable. It does not operate like a heating pad. When you touch the blanket, it may not feel hot to the touch. If you feel that your warming product is not operating properly or is not hot enough, we suggest you try the Heating Performance Test (see below).
If you have tried this test and the warming product does not heat, please contact Customer Service.
Heating Performance Test
All Holmes™ Heated Blanket's are tested at the factory for quality and performance. If you feel your warming product is not heating properly, you may want to try the fold test.
Please note: warming products are very different from heating pads. They will not feel hot to the touch when laid out flat.
The fold test is very easy:
CAUTION: Never continue the fold test for more than seven minutes. Never attempt to make any internal adjustments to this product.