LED Calculator

Supply Voltage: -OR- Select a Battery 3.7 Volt Li-On Battery Pack 7.4 Volt Li-On Battery Pack 6v (4x AA or AAA) 4.5v (3x AA or AAA)

LED Forward Voltage: -OR- Select an LED Cyan Rebel Star Red Rebel Star Blue Rebel Star Amber Rebel Star Green Rebel Star Royal Blue Rebel Star Red/Orange Rebel Star Deep Red Rebel Star White Rebel Star Cyan Rebel Star Amber Cree XP-E2 CopperNova Blue Cree XP-E2 CopperNova Deep Red Cree XP-E CopperNova Green Cree XP-E2 CopperNova Red Cree XP-E2 CopperNova Red Orange Cree XP-E2 CopperNova Royal Blue Cree XP-E2 CopperNova White Cree XP-E2 CopperNova

Desired Current: mA

Calculated Resistance OHMS

Recommended Wattage W

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