The ET60R transformer is fully dimmable. Their power flow is electronically controlled, to help preserve the life of the lamp. With a lightweight, compact design, The ET60R transformer comes with a 5 year guarantee. This electronic transformer is compatible with most Low and Mains voltage dimmers. This product carries an IP20 rating, which means it is protected against solid objects. It has no protection against water, and should only be installed in dry premises.