| Features | L1 | L2 | LW | LWM |
| Preset Dimming - Dims and brightens over preset1 hour period for dusk/dawn effect. | | | | |
| Dimming - VHO: up to 66 kilowatts using IceCap 660. User has full control of settings. | X | X | X | X |
| LCD Display | X | X | X | X |
| Solar Cycle - Create dawn, dusk, noon photoperiodsby adjusting intensity curve and maximum output. | X | X | X | X |
Lunar Cycle - Recreates moon phase with theaddition of an incandescent lamp. Up to 300 watts of incandescentlighting from 0-100%
| X | X | X | X |
Status Screen - this screen sequentially displaysthe following information: time, date, weather forecast, dawn, sunrise,noon, sunset, dusk.
| X | X | X | X |
Time & Date - set the current time anddate for local and alternate time zone.
| X | X | X | X |
Dawn & Dusk - allows for a gradual increasein the morning to eliminate the sudden shock of high intensity lighting.It will also reverse this process at the end of the day.
| X | X | X | X |
Daylight Levels - allows the user to recreatethe natural increase and decrease of light intensity typically seenin a day. Calculates winter and summer solstice and adjustsdaily photoperiod.
| X | X | X | X |
Storm Center - Randomly creates sunny, partlysunny, or mostly cloudy days. You set the level of storm activityfor the month or seasonally. The day's forecast is displayed onthe status screen.
| X | X | X | X |
| Lunar Cycle - features a moonlight portthat can be used with a small incandescent bulb to simulate the phasesof the moon. Studies have shown that many corals spawn in synchronismwith the lunar cycle. | X | X | X | X |
| Ground Plane Kit - a mylar tape which is appliedto the back of each bulb and grounded to a ground wire. This providessmooth dimming by allowing current to pass through the entire bulbwhen low voltage is applied. | X | X | X | X |
| Secondary IceCap Port - to dim two ballasts.Second ballast can be offset by up to one hour | | X | X | X |
| X-10 Control Port - independently turn on andoff items such as lights, fans, pumps, etc. Requires X-10 interfaceand satellites. | | X | X | X |
| # of X-10 Timer Channels - turns on and offone timer per day | | 4 | 4 | 4 |
| # of X-10 Wavemaker Channels - adjust from5 second to 1 hour per channel. Includes night mode, lunar mode,storm cycle, and feed mode. | | | 8 | 8 |
| Temperature - monitor and control (using X10).User can set ranges. | | | | X |
| pH - monitor and control (using X10) User canset ranges. | | | | X |
| ORP - monitor and control (using X10) Usercan set ranges. | | | | X |
| Doser Timers - four independent dosing controls.Each can be set to dose 1, 2, or 4 times daily. Each doser can beturned on from 5 seconds to one hour. | | X | X | X |
| CO2 Control - Shuts off CO2 solenoid when pHdrops. Allows for dual stage pH control. | | X | X | X |
