1,Led high of character: 30'',per size is 76X42cm.

2,super high brightness big digital 3''

3,Two sides PCB and static scan.

4,Power wire:  length 1.5M.

Second: 

1 Case dimension is 960*400*110mm 
2 Led high of character 300mm(12") redhigh brightness 4 digital 
3 Caseblack iron plate(plate work) 
4 Power wire length 2M. 
5 Remote control:wireless remote control.

Third:function requirement 
1 Left 2 digital hours, right 2 digital minutes,interval use luminescence led clock and temperature alternate displaying. 
2 Operation can be operated by remote control,upto 50 meters. 
3 When power cut,it has keep memory function
4,Remote control:wireless remote control

5,can auto control brightness according to environment.

Third:function requirement

1,Operation can be operated by remote control,up to 50 meters.

2,  When power cut,it has keep memory function.

Fourth:technical criteria

4,  Operational environment:temperature -19°C~80°C,relative humidity  0~95%.

5,  Power source:AC110-250V.according to every country standard voltage.