Hummingbird

LEDs need to be cooled to prolong their lifetime and improve performance. Theoretically, both natural and forced convection can be used to cool LEDs. However, in practice, forced convection is rarely used due to the relatively low reliability of the traditional rotary fan. Even though a heat sink with natural convection is a reliable solution, it is usually very heavy, bulky and relatively high in cost. For example, a 15-20 lb heat sink is needed to cool a 200W LED.

Now imagine an effective thermal solution for the 200W LED that weights less than 2 lbs – this is the innovation that Bimitech’s solutions enable.

Performance properties
Thermal resistance	0.24 C/W	Heat source to ambient. Single heat source 4 cm2
TDP	125 W	dT = 30 C
Fan flow rate	14 CFM	At zero head pressure
Voltage	±120 VAC, 60 Hz	Max operation voltage: ±160 VAC
Power consumption	0.7 W
Lifetime	150K hours	L10 at 65 C
Noise	24 dBA	Measured at 1 m from inlet
Ambient operating temperature	-40C to 75C (-40F to 149F)
Physical properties
Total length	125 mm
Heat sink length	70 mm
Width	150 mm
Total height	70 mm
Total mass	685 g
Heat sink mass	620 g

 

*Preliminary engineering data. Subject to change without notice.