LED tube lights beads 2835,3014 and 3528 applications comparison?

LED tube lights beads 2835,3014 and 3528 applications comparison?
Differences between the first refrigeration mode.
 
1. Since 3528 the negative beads by wire transfer heat release pin up, so cooling lamp beads 3528 may be referred to as "negative hot" in;
 
2. 2835,3014 through hole bracket LED lamp beads, and with a thermally conductive sheet, the chip's heat is transmitted directly to the aluminum plate, in order to
3528 cooling mode and to distinguish its cooling, also known as "hot separator", which means that the same current through the wire is not hot and
Conduction.
 
next. 2835,30143528 in the market, rather than the main reason:
 
Because they are not the same package structure, better heat dissipation, in 30 mA (normal understanding) the current working properly.