1. Simple wiring, 110V input,110V output, no need to ask an Electrical ,you can do it by yourself .2. load capacity, upto 6500Watt,30AMP.3. Easy , everyone can it after he reads the manual JUST one time.4. Stable performance because of professinal manufacturing in power saver since 2002.parameterYou can use the tier to SWITCH ON/OFF any elctrical equipments at a preset timerPerfect for household use in DB Boards6500 Watt / 30 Amps24 hours / 7 a week programmableBuilt-in battery for the memory (save the programs you set)when power failureAuto time error correction +/- 30 sec, weeklyRepeat programs with 17 on/off , and setting on/off manuallyColour:BlackMaterial:ABS+electronic componentsSize:12.0 cm x 8.0 cm x 6.0 cmPackage Contents:1 * Timer switch1 * ManualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.