TJOY lighting guides

Four short guides with numbers from the FTC, the Department of Energy and ENERGY STAR.

• Light colorHow to Choose a Light Bulb Color Temperature

  What 2700K, 3000K, 4000K and 5000K look like, and which rooms each one suits.

• BrightnessLumens to Watts: What Replaces a 40, 60, 75 or 100 Watt Bulb

  The lumens behind each old wattage, and where every TJOY bulb sits on that chart.

• LabelsHow to Read the Lighting Facts Label on a Bulb Box

  Five lines on every bulb box, and the arithmetic behind the yearly cost and the life in years.

• DimmingLED Bulbs and Dimmer Switches: What Works

  Which bulbs dim, why an old dimmer makes LEDs flicker, and what never goes on a dimmer.