Get the ORIGINAL! The ONLY switch approved for SUNHEAT heaters as it has been built to withstand 30% more power surges and is better built than those found on 3rd party sites from overseas factories. This special switch is only available from SUNHEAT and its Authorized retail partners, even so, be sure to confirm the part came from SUNHEAT. Why? Oftentimes as consumers we believe we can find the same product for a lower price elsewhere, however far too many times we have spoken with customers who decide to go the "cheap" route for this power switch only to end up frying the 45 degree fan switch in the process eventually costing them much more than had the original switch been purchased from SUNHEAT.