Bulb Glowing Test Tool

💡 Bulb Glowing Test Tool

This tool helps determine if a bulb will glow based on its specifications and power supply. Enter your bulb details below.

Bulb Voltage (V):

Bulb Wattage (W):

Power Supply Voltage (V):

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Test Results

How It Works

The tool calculates:

1. Bulb Resistance: R = V²/P (Ohm's Law)
2. Current Drawn: I = V_supply/R
3. Actual Power: P = V_supply × I

The bulb will glow if the supply voltage matches the bulb's rated voltage (±10%). Otherwise, it may be too dim or burn out.