Yes… They surely help at cooling down the pill although real potting compound is much better but it is permanent solution. At 7-8 A current draw it is not bad idea to put that silicone cubes in driver pill cavity 
Yes… They surely help at cooling down the pill although real potting compound is much better but it is permanent solution. At 7-8 A current draw it is not bad idea to put that silicone cubes in driver pill cavity