50w high power led is as bright as a 500w halogen
Thermal management is the main problem with this 50W high power LED. After a few minutes, the 4inch square aluminium…
10w 12v led floodlight with pir detector
I couldn't find a 12 volt LED floodlight with built-in PIR detector - it seems they don't exist. But I…
Multiple pwm5 solar charge controllers charging car battery bank
My new panel with three PWM5 solar charge controllers (www.256.co.uk). Separate feeds via diodes to the grid tie inverter
Flying the thruster microlight
I created this video with the YouTube Video Editor (http://www.youtube.com/editor)
Playing with solar – adding more panels
Time to run a second cable from the solar tool shed down to the battery bank. Since twin and earth…
12v led strips for kitchen under cabinet lighting
I've replaced the fluorescent tubes under my kitchen cabinets with 12 volt LED strips. The tubes failed too frequently and…
Playing with solar – amorphous v silicon wafer
What's the difference between Amorphous, Monocrystalline and Polycrystalline solar panels? Are amorphous panels really better in subdued light? How can…
Connect solar panel to car battery with croc clips and banana plugs
It's the end of summer and I'm out in the garden playing with solar panels, solar charge controllers and a…