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Revolutionary White Direct Incandescent Replacement

TORRANCE, CA - January 26, 1999 - LEDtronics® announces White LEDs that produce the long-sought true-white light. Sunlight-visible, these LEDs are direct replacements for incandescent lamps in industrial controls, indicators and other applications where durability and energy-efficiency are an absolute necessity. At 20mA, emission and color temperature are similar to a daylight-color fluorescent lamp and its color-rendering index is similar to a triphosphor fluorescent (high-grade) lamp.

White LEDs come in true (cool) white, warm white and incandescent white. They are available in the following sizes and base types: S6 Candelabra Screw-Based LED, 5mm Midget Flange LED, 3mm Grain-of-Wheat Sub-midget Flange LED, 5mm Wedge-Based LED, T3-1/4 (9mm) Miniature Bayonet-Based LED, and T2 Telephone Slide-Based LED.

Marking a milestone for LED technology, LEDtronics® new white LEDs use only one Indium Gallium Nitride (InGaN) blue chip combined with a phosphorous coating to generate a true-white colored beam. Previous white LEDs combined red, blue and green (RGB) LED chips to produce a white-colored light. One-chip technology results in superior reliability and color integrity.

Each LED has a water-clear lens that enables a high-intensity light to emit. LEDs deliver excellent visibility and color definition while using only a fraction of the power that an incandescent of similar luminosity requires. An LED transmits 100% of its energy as color-specific, (e.g., red, amber, green) light. For an incandescent to produce color, it filters 90% of its energy so that only light from a specific part of the spectrum is visible. Additionally, LEDs are solid state making them impervious to shock, vibration, frequent switching and environmental extremes. Typically, LEDs operate for 100,00 hours (11 years) or more. That’s more than 10 times an incandescent lamp!

White LED lamps can be supplied in all common indicator voltages from 5V to 240V, DC or AC. Built-in current-limiting resistors and polarity-protection diodes assure that no circuit modifications are required. The 120- to 240-volt model LED may be connected directly to line voltage, eliminating the requirement for a step-down transformer to supply the low voltage needed by LED lamps. What’s more, Ledtronics offers seven (ultra red, ultra orange, ultra amber, ultra yellow, ultra green, ultra blue and ultra white) complementary sunlight-visible colors.

Industries ranging from avionics to industrial controls to consumer electronics and medical spectrometric analysis benefit from employing White direct incandescent replacement LEDs. Use White LEDs for aisle lighting, overhead reading lights, elevator panels, industrial controls, architectural lighting, cellular phones, audio equipment, etc.

The possibilities are endless. LEDtronics® White LEDs are plug-compatible with such LEDs as #6S6 candelabra based, #387 midget flange, #85 wedge based, #1819 bayonet based and #120PSB telephone slide.

Samples are available to qualified customers. For additional information on White Direct Incandescent Replacement LEDs, contact LEDtronics®’ toll free at 1-800-579-4875, telephone 310-534-1505, fax at 310-534-1424, click here to email us or mail at LEDtronics Inc., 23105 Kashiwa Court, Torrance, CA 90505. Call and ask for datasheet log #016E. Visit our website at

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We can second source most LED Indicators from:

  • Industrial Devices (IDI)
  • Data Display Products (DDP)
  • Chicago Miniature (CM)
  • Hewlett-Packard (HP)
  • Visual Communcations (VCC)
  • Dialight
  • Eldema
  • Starled
  • Marl
  • Bulgin
  • Sloan
  • Leecraft
  • Solico
  • Apem
  • Littlefuse
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