What is the different between SMD2538 and SMD3528 LED corn lights

The different between  SMD2835 and SMD3528 

Core advantage of SMD 3528
1, The vertical structure: Chip direct conduction fins to improve the heat dissipation performance, which can withstand the higher current (40-60mA) 2, Large heat sink: larger than 3528 heat sink 2-3 times, excellent heat dissipation design, light decay of LED chip life more secure; ,
3.Over sized light-emitting surface: to improve the rate of light: up to 90%.
4, Ultra-thin structure: to solve the 3528 been long-standing problem spot;
5, High optical efficiency: higher than 3528 luminous efficiency 2-3 times the luminous efficiency of up to 90-100LM / W;
6, Super stability: low light fades material, process, process maturity and stability.
7, The high cost: to achieve the same luminous flux, than 3528 costs reduced more than 20%

TEK Lighting Technology which is the first manufacturer use SMD2835 LEDs as light source for LED maize lamps. The 2835 light sources provide a higher brightness, lower brightness decay.

Both 3528 &2835 SMD LED are widely used in LED corn light, LED corn bulbs, LED panel lights.