{"product_id":"mining-coal-stockpile-led-lighting","title":"Coal stockpile LED lighting","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHaving problems with lights lasting around coal stock piles and handling areas? These lights are \u003cbr\u003emade for coal stockpiles and handling plants. High sulfur from \u003cbr\u003ecoal is the cause of LED lights failing as it is very corrosive and damaging to \u003cbr\u003eelectronics. They're built from high-grade steels with a special protective \u003cbr\u003ecoating to resist this. These lights will not turn yellow. There's a wide range of \u003cbr\u003epower and light options for every situation. \u003cbr\u003eOur coal stockpile LED lights are ideal for replacement of older metal halide lights. \u003cbr\u003eStainless and alloy construction so no more lights breaking off and falling due to \u003cbr\u003erust.no more down time replacing bulbs. Low current draw. \u003cbr\u003eThere are various harmful substances capable of causing corrosion or damage to \u003cbr\u003ethe electronics in general or the LED specifically. Because high concentrations of \u003cbr\u003esulfur compounds can be a reason for defective LEDs. It is known that H2S can \u003cbr\u003eevaporate especially from Coal materials. When used near LEDs. As an example a \u003cbr\u003esilicone cast LED and the effect of hydrogen sulfide without coming into contact \u003cbr\u003ewith the harmful gas, the lead frame of the LED has a shiny surface. But after \u003cbr\u003econtact with a system containing H2S the surface turns brown or black, noticeable \u003cbr\u003eby visual inspection (for LEDs with a clear casting). The presence of a micro \u003cbr\u003eclimate, containing sulfur compounds, causes a chemical reaction of the diffused \u003cbr\u003egases with the silver lead frame plating. The silver layer transforms into silver \u003cbr\u003esulfide. In this particular case the corrosion leads to an open contact, as the bond \u003cbr\u003ewire is disconnected. This happens because silver sulfide is not electro-conductive \u003cbr\u003eand its volume is greater than the volume of silver. This then leads to a mechanical \u003cbr\u003eseparation between the bond wire and the connecting lead. In other cases it can \u003cbr\u003elead to an open contact because of lifted glue or other functional failures. Corrosive \u003cbr\u003egases can penetrate through the encapsulation of the LED, especially when a \u003cbr\u003esilicone encapsulation is used. This can lead to corrosion of the different metals \u003cbr\u003eused in the LED. If gases diffuse through the encapsulation, the lead frame may \u003cbr\u003ebecome discoloured. This corrosion can affect the performance and the lifetime of \u003cbr\u003ethe LED negatively and lead to a failure.\u003c\/span\u003e\u003c\/p\u003e","brand":"ALL LED Direct","offers":[{"title":"Default Title","offer_id":52390022938898,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/9449\/7298\/files\/tjl-coal-stockpile-led-lighting-1.jpg?v=1787799984","url":"https:\/\/alledirect.com\/products\/mining-coal-stockpile-led-lighting","provider":"All LED Direct","version":"1.0","type":"link"}