Salzer Modular Fan Regulator 5-Steps | Manual Control 1 Way Switch | UL94 Material With UV Stabilized Polycarbonate | 240 Volts AC, 100 Watts | Fits Only On Mounting Frames (Pack Of 1), White

Good quality product. Tried to buy off-line, but was not available in any electrical shop.

Effective and working as expected. Old model fans require heavy current management that smaller electronic regulator cannot provide. Many regulator look large but internally they are not made to handle higher current particularly during low speed. 2 Panasonic regulator burnt with in an year of use. This is robust and working well.

When you regulate to high speed 3 to 5 you can hear high spark sounds.

Best product from Salzar. I had tough time sourcing it from local market. Thanks Amazon

I was not able to find Salzer fan regulator product in offline stores. Thanks to Amazon and Salzer electronics seller, finally I was able to replace the old one which was broken. Its working perfectly. I feel 550rps is on the expensive.

Very poor quality. It breaks automatically after few years. Size is smaller, we can't replace this regulator alone with another brand. We have to change entire board. It is better to change board once for all with trusted brand.

Good