Cree LMH2 LED Module Versus Traditional CFL Options
By Digi-Key Technical Content
Contributed By Digi-Key Corporation
The Cree LMH2 LED Module provides unparalleled efficacy and light quality in a fully integrated module. Utilizing Cree’s True White Technology, the LMH2 provides beautiful 90 plus CRI lights in 4000 Kelvin, 3500 Kelvin, 3000 Kelvin, and 2700 Kelvin color temperatures. In addition, the LMH2 delivers 97 LPW efficacy across all CCT and lumen options. There are two lens options. The flat lens provides an 82 Degree Beam Angle while the Dome lens provides a 100 Degree Beam Angle. In addition, there is a Unique Driver Compatibility Program that provides a list of tested and recommended drivers for the LMH2. There is also a 5-year warranty on the module, even for those utilizing a third party driver. Finally, the aluminum housing provides tremendous thermal design flexibility.
In Figure 2 below are more details on the LMH2 Optic options. The flat lens has an 82 Degree Angle, Full Width Half Max, and provides more directional light. This makes it ideal for down lights.
In comparison, the dome lens has a 100 Degree Angle, Full Width Half Max, and provides more light directed sideways. This makes it ideal for reflectors or non-directional lighting.
Shown in Figure 3 is a design example comparing a 26 Watt CFL source to a 1250 lumen LMH2. As seen in the chart, the LMH2-based design provides the same amount of lumens as the incumbent solution, but much more efficiently. The LMH2 has an efficacy of 73 lumens per watt, while the CFL solution is at only 40 lumens per watt. In addition, the LMH2 has five times the projected lifetime of the CFL source. There are additional benefits to the LMH2 including better color performance, faster startup, and better dimming capabilities.