Dimensions SwitchGlo Pro: 1.587" x .720" x .590" PushGlo: TBD     Weight SwitchGlo Pro: 25 grams with pigtail PushGlo: TBD   Input/Output SwitchGlo 1st Gen: 4.8 - 6.8V or 6.9 - 8.4V input SwitchGlo Pro: 4V - 9V input, 4.8W output (OS-8 plug) PushGlo: 4V - 9V input, output TBD     Frequency Compatibility 27 MHz 35 MHz 36 MHz 41 MHz 50 MHz 72 MHz 75 MHz 2.4 GHz Any other frequencies un-tested     Power Consumption 0.4mah per second of glow time 4.8mah per 12 second glow (average engine start) 120mah per 5 minutes glow (Airplane low throttle use est.)     Average current draw to glow is at 1.3amp (varies from 4 to 9V input)     Safety SwitchGlo Pro V4&5 fw: Automatic glow shut-off in 12 or 60 seconds in case the toggle is left ON SwitchGlo Pro V6 fw: Automatic glow shut-off in 12 or always ON while triggered PushGlo: 12 seconds of glow each push, up to 60 seconds continuous.                Terminate extended glow by pressing button for 2 seconds.     Engineering The SwitchGlo Pro and PushGlo embodies a multilayer circuit board with low power components creating an intelligent switch-mode regulation. They both utilizes a programmable microcontroller enabling our custom source code to control the glow efficiency under various voltages and conditions, as well as control the many other key features that makes SwitchGlo Pro and PushGlo so great. SwitchGlo is designed by Zdatum Corporation, the same engineering firm to provide circuit design for projects within the Space Shuttle, Mars Probe, AH-1Z Cobra Helicopter, B1 Bomber, and numerous other military, commercial, and medical applications.     Pre-Production Beta Testing - 2007 SwitchGlo beta units were given to 30 R/C Helicopter, Airplane, and Truck enthusiasts and professionals. We estimate a pre-production SwitchGlo usage time of 360 flight hours. During this time, we collected surveys from each beta tester, providing us with detailed opinions of product perception, performance, features, size, weight, and price. The survey responses exceeded our expectation. All beta testers were extremely happy with SwitchGlo in all respects except size and weight. In our final production design, we reduced both size and weight by half. The same beta units are still in use and performing very well.   sales@SwitchGlo.com              Phone: 818.709.0268   Watch for more highly efficient R/C electronics from SwitchGlo in the future!