18. Controlling LEDs LED brightness and use dependent on the current flow through the diode.
19. HB LEDs vs. Standard LEDs Source: iSuppli (Solid State Lighting) One (1) candela = 12.75 lumens LED Type Luminous Flux Current Standard < 50 lumens < 30 mA High Brightness (HB) > 50 lumens < 350 mA