Brighter bulbs for outdoor landscape lighting?

[BatteryCharger]

I have some 12v Malibu landscape lights in my yard, and they all use 4 watt bulbs like this one:
http://www.malibulights.com/index.ph...d=8&pid=ML4W4C
The problem is, the bulbs are all very yellow, as if they aren't getting enough voltage. (but they are)

First of all, is that a standard type of bulb or something special only Malibu makes? Does anybody sell a whiter version? I'm not looking for something with more wattage, just a different color temperature...(my transformer is already maxed out)

[jayb79]

Are they festoon type bulb? If so try some of these: http://www.superbrightleds.com/festoon.html

They draw lots less power.

[yuandrew]

Malibu bulbs are usually wedge based. The 194/168 type replacements should work.

http://www.superbrightleds.com/mini-wedge.html

[bfg9000]

Malibu ballasts are usually 13.8v AC. If the LEDs don't go they'll blink at 60Hz.