TJL Coal stockpile LED lighting

Description

Having problems with lights lasting around coal stock piles and handling areas? We 
have designed these lights for coal stock piles and handing plants. High sulfur from 
coal is the cause of LED lights failing as it is very corrosive and damaging to 
electronics. Our lights are made of high grade steels and are coated in a special 
coating to eliminate this. These lights will not turn yellow. We have a huge range of 
power and light options for every situation. 
Our coal stockpile LED lights are ideal for replacement of older metal halide lights. 
Stainless and alloy construction so no more lights breaking off and falling due to 
rust.no more down time replacing bulbs. Low current draw. 
There are various harmful substances capable of causing corrosion or damage to 
the electronics in general or the LED specifically. Because high concentrations of 
sulfur compounds can be a reason for defective LEDs. It is known that H2S can 
evaporate especially from Coal materials. When used near LEDs. As an example a 
silicone cast LED and the effect of hydrogen sulfide without coming into contact 
with the harmful gas, the lead frame of the LED has a shiny surface. But after 
contact with a system containing H2S the surface turns brown or black, noticeable 
by visual inspection (for LEDs with a clear casting). The presence of a micro 
climate, containing sulfur compounds, causes a chemical reaction of the diffused 
gases with the silver lead frame plating. The silver layer transforms into silver 
sulfide. In this particular case the corrosion leads to an open contact, as the bond 
wire is disconnected. This happens because silver sulfide is not electro-conductive 
and its volume is greater than the volume of silver. This then leads to a mechanical 
separation between the bond wire and the connecting lead. In other cases it can 
lead to an open contact because of lifted glue or other functional failures. Corrosive 
gases can penetrate through the encapsulation of the LED, especially when a 
silicone encapsulation is used. This can lead to corrosion of the different metals 
used in the LED. If gases diffuse through the encapsulation, the lead frame may 
become discoloured. This corrosion can affect the performance and the lifetime of 
the LED negatively and lead to a failure.