this is an economy plug-in time switch with numerous options!this time switch allows you to set programs for individual days orvarious combinations of days, including monday to friday, saturdayand sunday only or monday to sunday, as well as others. this timeris ideal for switching lights, radios, etc. on whilst your house isunoccupied, giving the impression that people are in. it can alsobe used to take advantage of cheaper electricity costs during offpeak periods. not suitable for fluorescent, low energy or dischargelamps.

mainfeatures:
1.large lcd display (lcd size: 34*49mm)
2. plug-in design; easy programming
3. 8 keys timer function 
4. 16 kinds of days group setting: 
5. time setting is include hour, minute and week
6. summer &winter time mode
7. random function
8. 12/24 hours changeable
9. integrated rechargeable batteries
10. ul certified
11. no backlight 
specification:
voltage: 120v 60hz
installation: plug-in type
rating: 120v ac / 15a /1800w
setting time: 1 minute
operating temperatures: -10~+40℃
accuracy: 1 minute
battery: nimh 1.2v(battery is built-in, non-removable) 
work life >100 hours
timing set:
-press 'week' key to choose the days group you wish to switch-onthe appliance. there are 16 groups: 
mo tu we th fr sa su→mo→tu→we→th→fr→sa→su→mo tu we th fr→sa su→motu we th fr sa→mo we fr→tu th sa →mo tu we→th fr sa→mo we fr su
-press 'hour' key once from '0'~'23' or '1' ~'12'. 
-press 'minute' key once from '00'~'59'
-be sure to press the 'reset/recall' key to reset or cancel allsystems
package included:
1 x digital timer socket (usa plug) 
1 x english manual