VI. IMPLEMENTATION RESULTS
The proposed LED lighting system is designed and implemented. An LED lamp of 35W is designed and fabricated
considering all thermal considerations. Similarly, 4 other 9W LED lamps are designed and fabricated. CREE High power
1W, 3.12 V, 350 rnA white LED is selected. A lamp design with 7 LED in a string of 5 strings in parallel is designed to
meet the requirement of 35W. With 7 LEOs in each string the supply voltage required will be around 24V (from eqn. (I)).
Current through the LED module is 35 W /24 V=I.5 A.