Day-night timer or Wavemaker Timer. This is the one that has dual timers. One side switches between two components - use as a wavemaker (every 15 minutes or so), or use it like I did to turn moonlights off and actinics on and vice versa. There is a second timer to control a third component (like up to three metal halides).
I have two of these. They kept good time on my tanks and I never had a problem with the switches. I am still using a third one on our seahorse tank...
http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=11379
It is the CD21145 in the above DFS page.
Asking $16 each or both for $28
PM me
LL
I have two of these. They kept good time on my tanks and I never had a problem with the switches. I am still using a third one on our seahorse tank...
http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=11379
It is the CD21145 in the above DFS page.
Asking $16 each or both for $28
PM me
LL