If you cannot find an SL-01 (or it breaks), consider these replacements:
For small theater stages or classroom dividers using a scissor-arm mechanism, the SL-01 can manage lightweight curtain openers. somfy swf lift motor sl-01
is engineered for small to medium-sized interior blinds, focusing on quiet operation and ease of retrofit. INTELLIGENT SHADE MANAGEMENT - Somfy.com If you cannot find an SL-01 (or it