CirKits Selling Electronic Kits for Solar Power since 2000

Located in Boulder, Colorado, USA

SCC3 SCC3 Solar Charge Controller kit 12 Volt, 20 Amp solar charge controller that is installed between a photovoltaic panel and a battery for charge regulation. The SCC3 is designed for cabin-sized solar power systems, stand-alone solar devices, portable and automotive/marine solar power systems.
DAS1 DAS1 Dark Activated Switch kit 12 Volt, 10 Amp dark activated load switch that is used for automatic on-at-dark lighting systems. Features built-in dual white LED light source, On-Off-Auto switch and low voltage disconnect (LVD) with automatic reconnect. Works in conjunction with the SCC3.
LVD1 LVD1 Low Voltage Disconnect kit 12 Volt, 15 Amp low voltage disconnect (LVD) circuit with auto and manual restart. For automatic power control of remote solar-powered devices. Features adjustable on and off voltages, low voltage indication before disconnect and an isolated L.V. signal for controlling other devices. Works in conjunction with the SCC3.
BVM1 BVM1 Battery Voltage Monitor kit 12 Volt color-coded LED voltmeter with low power consumption. For monitoring 12V solar/alternative energy power systems and automotive/marine/RV batteries. One of ten color-coded ultra-bright LEDs will blink to indicate battery voltage in .5 Volt steps from 10.5V to 15V. Includes a switch-enabled beeper that warns of a low battery condition. Works in conjunction with the SCC3 and SPC3.
SPC3 SPC3 Solar Power Center kit 12 Volt, 9 Amp solar charge controller with a 10 Amp manually-operated load switch, low voltage disconnect (LVD), self-contained light source and connection for additional lamps. The SPC3 is designed to be the heart of a solar-powered lighting system for small buildings and portable systems.