UD5 Toolkit
Light Bulb Savings Calculator – LED vs Incandescent
See how much money and energy you can save by switching from incandescent or CFL bulbs to LED. Includes payback period and annual savings estimates.
Tag: LED Lighting Guide & Power Calculator
3+ toolsLumens to Watts Converter – LED, CFL & Incandescent Equivalents
Enter lumens to see the equivalent wattage for old incandescent, halogen, CFL, and LED bulbs. Make the switch to energy‑efficient lighting.
LED Series Resistor Calculator - Online Current Limiting Tool
Calculate the correct series resistor for an LED based on supply voltage, LED forward voltage, and desired current. Circuit diagram shown. Local only.