1、24-HOUR TIMER -- This timer provides daily control, and with the convenient override switch (OFF, AUTO and ON), you can interrupt the timer cycle when not needed. This timer can help you reduce operation time of electrical devices, saving you energy and money. 2、15-MINUTE INTERVALS -- The push pin segments around the dial each represent 15 minute periods. And there are 96 operations per day for you to set accommodates varied schedules, ultra convenient for precision setting. 3、SIMPLE OPERATION -- To program, simply select the time period(s) you want the electrical device turned on, and push down the push pins between that time period. Then rotate the inside dial clockwise until points to the current timer. 4、NON POWER FAILURE -- Included a Nickel metal hydride battery which can lasting for 3 years. As the timer switch switch on, built-in battery will start charging automatically, the timer will be full of power after 3 days of continuous switching. 5、WIDE APPLICATION -- 24-Hour mechanical timer great for control LED, CFL, LED and halogen bulbs or other hard-wired devices, it is practical to lower power consumption of street lamp, billboard, neon light, etc. 24-Hour Mechanical Timer provides simple, convenient automation control for your hardwired devices or lighting using 15-minute interval push pins. With 96 times off /on time set range 15 min ideal for varied routines, the timer allows unique schedules throughout the day. Simply rotate timer's dial clockwise until pointer on face of dial points to the current timer, select time period (or periods) you want the appliance turned on, then push down all segments that fall on or within that time period. Features: 24-HOUR TIMER -- This timer provides daily control, and with the convenient override switch (OFF, AUTO and ON), you can interrupt the timer cycle when not needed. This timer can help you reduce operation time of electrical devices, saving you energy and money. 15-MINUTE INTERVALS -- The push pin segments around the dial each represent 15 minute periods. And there are 96 operations per day for you to set accommodates varied schedules, ultra convenient for precision setting. SIMPLE OPERATION -- To program, simply select the time period(s) you want the electrical device turned on, and push down the push pins between that time period. Then rotate the inside dial clockwise until points to the current timer. NON POWER FAILURE -- Included a Nickel metal hydride battery which can lasting for 3 years. As the timer switch switch on, built-in battery will start charging automatically, the timer will be full of power after 3 days of continuous switching. WIDE APPLICATION -- 24-Hour mechanical timer great for control LED, CFL, LED and halogen bulbs or other hard-wired devices, it is practical to lower power consumption of street lamp, billboard, neon light, etc. Specification: Working Voltage: 100-240VAC general Power Frequency: 50Hz/60Hz general Drive Modle: Quartz motor type Blackout Compensation: 300H(operation temperature 20℃） Time Precision: Poor reading 30s(operation temperature 25℃) Action Time Precision: ±3 minutes (Not including initial time to adjust error) Cycle: 24 hours Power Consumption: AC 110V 1W; AC 220V 2W Output Contacts: SPST Contact Capacity: Resistance load  15A LED lamp load  10A Inductivloade 12A Motor load  AC110.750W AC220V.1500W Setting Time: Minimum setting unit 15 minutes Minimum setting  15 minutes NO.of on/off operation 96operations/day Ambient Operating Temperature: -10℃- 50℃ Ambient Operating Humidity: less than85% Installation: Din Rail/Fix/Hang Item Size: 110*83*45mm/4.33*3.27*1.77in Packing List: 1 * Mechanical Timer 1 * User Manual 1 * Mechanical Timer 1 * User Manual