Digital power center from ESU is a must have for the aquarist - perfect for automated day-night lighting cycles, with plenty of outlets left for your other equipment!

Features:

8 outlets: 4 constant and 4 alternating timer-controlled
You can set this unit to turn your lighting systems on or off 7x/day, and on different days of the week.
The 4 timer-controlled outlets are divided into 2 daytime, and 2 nighttime, making the transition between lighting cycles simpler and easier to manage.
Built-in digital readout tells time and makes it easy to set controls
Master on/off switch and sliding safety outlet covers
One year manufacturer's warranty covers defects in materials and workmanship

Specifications:

4 3/4" X 2 3/4" X 12 3/4"
UL listed

Instructions:

Battery installation:

Remove battery cover from back of time display. Remove battery seal and reinstall battery.
Replace battery cover. (Note: Battery will activate display screen and start clock automatically.)
Plug Center into a grounded 3-prong receptacle controlled by a GFI circuit breaker.
Turn on the on/off switch (red light is visible when power is on). (Note: Battery serves as a back-up power for timer settings. Replace every 9 months.)

Setting day and time: Hold down the CLK (clock) button and press:

Day button to set the day of the week
Hour and Min buttons to set the current time of day.

Setting timers:

Note: Yellow (daytime) and Blue (nighttime) outlets alternate power, both outlets cannot be on at the same time-when the daytime outlets are on the nighttime outlets are off and when the daytime outlets turn off, the nighttime outlets are switched on automatically.

Press PRG button once. Yellow outlets on.

Press DAY button repeatedly and select desired day(s) that the Yellow outlets will turn on.

Press HOUR and MIN buttons to set the time of day that the Yellow outlets will turn off.

To set time cycle 2-7, repeat timer settings.

When timer settings are complete, press CLK button to exit timer setting program and return to clock display.

Review/edit Timer Settings:

Press the PRG button to check and display timer settings.
To change a time cycle setting, press PRG button to display the incorrect time and press DAY, HOUR and MIN to edit.
When settings are complete, press CLK button to exit timer setting program an return to clock display.

Deleting Timer Settings:

Press the PRG button to check and display timer settings.
Locate the time cycle to be deleted.
Hold MODE button down and press PRG button to clean the time cycle.

Activating Time Cycle: Press the MODE button to display:

Off: Yellow outlets are off Blue outlets are on
On: Blue outlets are on Yellow outlets are off
Auto: Programmed Time cycle(s) timer settings activated
RDM: Activate +/- 15 min. before and after time cycle 1 and time cycle 2.

Digital Power Center Installation:

Once time cycle(s) are set, mount a light fixture onto the aquarium.
Plug fixture power cords into the power center.
Turn on the Center on/off switch (red light is visible when power is on).