GroLEDs Kit

$29.95 ea

54 ship on Feb. 1

  • Part no.: 2259817
  • Manufacturer: Jameco Kitpro
  • Manufacturer no.: CJKIT-21420
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groLEDs: Computer Controllable, Adjustable Broad Spectrum, High Brightness "grow 50-LEDs-lamp" Kit

The groLEDs kit offers an economical, versatile, safe, efficient, and easy-to-use alternative to traditional and commercial-grade Grow Lamp/Light products.

BRIGHT: The three different colors of LEDs all include high luminosity intensity ratings measured in candela's (cd) instead of 'normal' LED millicandela (mcd) ratings. The Blue LEDs emit 57cd (57,000mcd), the White LEDs emit 80cd (80,000mcd), and the Red LEDs emit 80cd (80,000mcd), when they are powered at their nominal operating voltage. The equivalent light output is that of (very bright) 217 (standard) candles when all LEDs are lit.

ADJUSTABLE SPECTRUM: Unlike many full spectrum Grow Light Products, which attempt to provide some 'additional' red and blue light energy mixed with the standard yellow/white, the groLEDs kit is designed to enable the user to specifically select the light color output based upon growing needs. The color combinations include:
1) OFF (emulating night-time darkness)
2) BLUE Only ON, or
3) RED Only ON, or
4) WHITE Only ON, or
5) BLUE and RED Only ON, or
6) BLUE and WHITE Only ON, or
7) RED and WHITE Only ON, or
8) BLUE and RED and WHITE all ON.
This enables the user to emphasize the Blue end of the spectrum when attempting to promote healthy vegetation growth, while the Red end is used when enhancing the budding and flowering phases of growth, depending upon specific growth requirements.

DIRECTIONALLY FOCUSED: Common Grow Lamps in the shape of (T5) Florescent Tubes or common incandescent shaped bulbs broadcast their light in almost all directions, requiring mirror-reflectors to aim the light where it is needed by the plants. LED Lamps with narrow beam widths 'aim' their light like spot lights right where it is needed by the plants.

EASILY CONTROLLED: Most Grow Lamps, including many 'hi-tech' LED Lamp fixtures, only provide on-off capability. The groLEDs kit is designed so that each bank of colors (Blue, White, and Red) can be individually controlled, manually, or automatically via (computer-controlled) relay contacts, or both. This enables the user to control the spectrum and the time that light is on versus off, changing as the growing cycles change on a per-plant basis, if desired.

POWER-SAFE: Mixing water and 115VAC never seemed like a good idea in any kind of growing environment. Nearly every grow light available, including most LED Grow lamps, are powered by 115VAC, whether by a power cord that plugs into a nearby socket, or one that screws into a lamp socket wired for 115VAC. The groLEDs kit is designed to be run from +5Vdc, enabling the user to safely use water near the groLEDs kit fixture without fear of electrocution. The user places the 5volts power supply in a safe dry location remote from the growing (watering) area.

INEXPENSIVE: Compared to all other grow light solutions the groLEDs kit is very inexpensive. Not including the printed circuit board and optional components, the JameCo catalog list-price for all 50 LEDs and their current limiters is just $21.45.

RELIABLE: LEDs have a life-cycle measured in tens-of-thousands-of hours, or many years; significantly longer than any other grow-light solution. Many commercially available 115VAC powered LED Grow bulbs include integrated AC-to-DC converters to create the proper power parameters for powering the LEDs within the bulb-fixture. These converters, being active electronics subjected to relatively high-heat conditions are prone to fail long before the actual light-emitting-diodes themselves. The groLEDs kit uses only passive components, making it much more dependable for many years of service. Unlike most Christmas LED strings, if and when a LED fails on the groLEDs kit, all the other LEDs remain lit without changing their intensities.

ADJUSTABLE BRIGHTNESS: Since the groLEDs kit is completely passive, it is possible for the user to vary the light intensity, as needed, by varying the +5volts input, to increase the brightness level (to a maximum level) or to reduce it, as needed for specific growing requirements. Details about these voltage levels, and the overall power requirements, are included in the 'instructions' for the kit assembly.

THRU-HOLE ONLY: The small 1.95" x 2.6" 2-layer printed circuit board uses thru-hole components only, making it a kit that can be built by any level of expertise. All 50 LEDs are mounted on one side of the board (see the picture with this brief), and all of the other components, including optional ones, are mounted on the backside of the board. Since this it is not a typical assembly process to include thru-hole components on both sides of a printed circuit board, the instructions walk the kit-builder through the process to ensure reliable solder connections and no scorched LEDs (or fingers). There are four 0.2" diameter holes in each of the corners of the groLEDs kit assembly for mounting, or hanging the fixture for usage.

WHY: My wife and live in the woods where consistent growing (sun)light is unheard of, making it difficult to start new plants, and even to keep mature plants growing properly during the winter. We have tried many artificial light sources; all of them with various short-comings; most of them extremely expensive. Necessity is the Mother of Invention. I hope that you enjoy the fruits of this labor.

Check out what others are saying about the groLEDs project build! Please note: Due to inventory packaging methods, you may receive more components than required for some products.

If you are unsure of the dangers involved with your particular project, consult with someone who is experienced. Always wear eye protection and gloves. FAILURE TO INITIATE AND FOLLOW YOUR OWN SAFETY PROCEDURES MAY RESULT IN BODILY INJURY OR DEATH!

You Will Need

  • Soldering iron and solder
  • Wire cutters
  • Needle nose pliers

Kit Includes:

Part No.
56 Ohm Resistor, 1/4 Watt, 5%
100 Ohm Resistor, 1/4 Watt, 5%
White LED
Blue LED
Super Orange Red LED

Club Jameco Project #21420

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