The dimmable GU5.3 (MR16) LED bulb is a rarity with it's ability to dim from 100% to 25% (or lower if the load on the circuit is high enough).  Using high quality Nichia LEDs and outstanding thermal design for heat dissipation these bulbs meet the US DOE requirements for MR16 LED lighting.  Other features include:

• Available in Cool White and Warm White
• Supports PWM dimming
• Ultra low power consumption and high power factor rating
• Private branding option is available
• 20,000+ hour lifetime is achievable
• Light output appears as a single unified light source despite the usage of 3 separate LED chips
• Instant on, noiseless operation and mercury free