These genuine Vishay superflux amber LEDs are very bright. They have a 60 degree viewing angle and are rated at 1.4 lumens at 70mA. Maximum power dissipation is 187mW, so you really can run these at up to 70mA (providing you have enough copper on your PCB to extract the heat, of course!). You could use these with my bare superflux PCB.
Part number TLWY7600. Datasheet is here.