... 468, etc.c. Color: Pantone and RAL color matching system.d. LED, Metal domes,connect,and circuit layout can be ... DC),100mA,1 WContact resistance10Ω - 500Ω(According the trace length and materials to confirm) Insulation resistance>100MΩ 250V(DC) ... ,90%-95%,240 hours Our products are widely used in controlling system, measuring apparatus,electrical home appliances , instrument , communication , textile ...