Hi Guys,
I have a small 4WD buggy used for spotlighting foxes on the farm. It has a Lightforce Blitz 240 mounted on the roof and we recently converted to HID in an attempt to improve throw and reduce current draw as the alternator is pretty small. Its not been a success and I want to try scratch building an LED spotlight for long range work. I have a workshop and tools (lathe, mill etc) so the fabrication part of the equation isn't a concern but looking for advice on the LED source to use and the lens and lens arrangements I should consider.
Range and tightness of the beam are the primary objectives. A clean focused beam that reaches out to at least 300m
Size / weight not a big factor (its perma-mounted)
12V source (so may need DC-DC) but want to keep current draw under 6A if possible
Needs to be water resistant (rain)
I am thinking a 5" / 125mm aluminium tube with a single very large LED (15W?) / supply /heatsink at one end and a focusing lens at the front.
Thoughts?
I have a small 4WD buggy used for spotlighting foxes on the farm. It has a Lightforce Blitz 240 mounted on the roof and we recently converted to HID in an attempt to improve throw and reduce current draw as the alternator is pretty small. Its not been a success and I want to try scratch building an LED spotlight for long range work. I have a workshop and tools (lathe, mill etc) so the fabrication part of the equation isn't a concern but looking for advice on the LED source to use and the lens and lens arrangements I should consider.
Range and tightness of the beam are the primary objectives. A clean focused beam that reaches out to at least 300m
Size / weight not a big factor (its perma-mounted)
12V source (so may need DC-DC) but want to keep current draw under 6A if possible
Needs to be water resistant (rain)
I am thinking a 5" / 125mm aluminium tube with a single very large LED (15W?) / supply /heatsink at one end and a focusing lens at the front.
Thoughts?