This is Sherry Zhuang(86-13510404704) From Alhdara . (www.alhdara-china.com And www.alhdara-sy.com )
      Alhdara is a professional electronic company which is engaged in various regulator,T5&T8 electronic fixture,electronic ballast,Muslim pray clock(Azan clock), Digital LED voltmeter and so on. Also we are the agent for High Power
Relay and Thyristor.

Besides,If you enter Dubai autumn fair in Dec 15-18th 2008,Please visit our booth:

Booth No. H12 ,HALL 3 - Dubai International Convention and Exhibition Centre.

      There is High-class equipments, advanced technology and modern management，so our company has a strong development and manufacturing capabilities. Good quality, competitive price make our company's products share the global market，We have established good relationship with the domestic and foreign customers.

Azan Clock

* Beautiful design suitable for Mosque and home use.

* Azan Makkah & Madina & Al-aqsa.

* Day light saving format to adjust pray times. 

* Remote control and keypad for easy setting.

* 400 cities can be downloaded.

* Azkaar for each quarter hour can be effected with 12  kinds of sounds can be chooseed.

* Sound can be adjust at 7 levels.

* Gregorian and Hijri full date.

* Full time show with 12/24 h format.

* Help sound for stetting.

* Reminding before 15min for next pray time.

* Hijri month LED indication.

* Prayers Timing automatic daily updated.

* Backup battery save date，time and setting.

* With broadband voltage (120-277 V), so that the products can work safely and reliably;

* PC fire-proof plastic shell, endure high temperature, fire-proof, in line with the  advanced design of CE standard;

* Less power consumption, energy saving is obvious;

* Preheating activated lamp is easier to start at low temperatures, longer life time for lamp;

* Low temperature, no stroboscopic, no noise, anti-electromagnetic interference, low harmonic distortion;

* Apply to frequent switching, to long time Lighting  Project (shops, showrooms, homes, factories, offices,  workshops, water clusters lighting or decorative  lighting)and so on;

* Perfect consistency, and stable performance .

Electronic Fixture (Fluorescent Light Fixture)

Characteristics:    

* No flash, no noise, no radiation, protect eyes and  brain, improve lighting quality and  the working environment effectively No need starter, can start up at hormal lowvoltage，and suitable for wide voltage range.

* More than 20% of energy-saving, energy-saving effect is obvius small power-consuming, low temperature rise,long life, fire safety protection. 

* Small electromagnetic interference,no effect to electrical circuits and other equipment.

* Green aluminum lighthouse, plastic shell is special encapsulating for Ballast,fire-proof, moisture-proof, explosion-proof  and so on. 

* Stable output current, and more effective extension for the working life of the lamp.

Apply to :

Suitable for shopping malls, homes, hotels, office space and other long time lighting engineering applications. 

Toroidal Transformer characteristic ：

(1) Little flux leakage，the ring is very close，uniform magnetic circuit and completely closed，no air gap in the magnetic circuit，therefore，particularly small external magnetic flux leakage.

(2) Small losing，low-temperature，high efficiency is The magnetic induction B value transformer strength in the design of about 1.7 T (saturation magnetic induction intensity up to 1.9 T ),less winding turns，small internal resistance，thereby reducing the loss of copper and iron and improve the efficiency of the transformer，winding Coil around the ring  core，so good heat dissipation, low temperature rise.

(3) Strong ability of overload

   Winding due to the resistance of small, quick reaction, when the additional load current suddenly increased,the roll transformers can quickly upgrade the current to ensure that the load needs. Especially in the HiFi  stereo equipment，it is very suitable to use this kind of roll transformer.

(4) Small size, light weight.

Digital LED Voltmeter  

* Standard Size and Specification 

* The Core is 12 A / D converter microcontroller, high accuracy, wide measuring range (30 V ~ 400V)

* Three settings buttons, you can set the maximum  and minimum.

* When Measureed value exceed the scope of value, the light will flash as alarm (set aside the interface for alarm buzzer).

* get Power directly from the testing , and only reed 2 wires can work normally and it is able to access accurate testing, no need match with low-voltage power adapter

* Buttons can control the decimal point position, set measurement range, precision.

* Conditions of Use: －２０℃～85℃、 and relative humidity ≤ 80% (25℃)

* Voltage: When the self rating change at 15%, the error caused by itself will not more than the basic error. 

HIGH POWER RELAY 60A AND 100A

Part No.:ALH-13D-60

Parameter:24 VDC COLOR:GREY 5A  480V/600V  50/60HZ 10A TUNG.120V 50/60HZ 60A 28VDC/300V 50/60HZ

1 1/2HP EACH POLE 120-600V 50/60HZ 2HP SW.2 POLES 200-600V 50/60HZ

SHORT CIRCUIT RATING  5KA(RMS) 600V  FUSES ONLY

Part No.:ALH-13-100

Parameter:

 24 VDC COLOR:GREY 5A  480V/600V  50/60HZ 10A TUNG.120V 50/60HZ 100A 28VDC/300V 50/60HZ

1 1/2HP EACH POLE 120-600V 50/60HZ 2HP SW.2 POLES 200-600V 50/60HZ

SHORT CIRCUIT RATING 5KA(RMS) 600V FUSES ONLY