Sentences with phrase «watt illuminance»

A Bulb base, a full wave Diode rectifier bridge rated at over 600 Vdc PIV 1 amp, a 5.1 Volt 1 amp zener diode, a 470 ohm 1 watt resistor (for 120 vac twice that value for 240 Vac), about 10 LEDs (available from ebay) and a frosted plastic cover can make about a 4.5 watt light source with about a 100 watt illuminance.