5 Watt Luxeon SE Reflector Nirvana 17,500 Lux !
Here's another mod for the Chicago Electric Power Tools spot light (available at Harbor Freight $9.95 when on sale, $14.95 regular price).
The 6V 5 Amp Hour Sealed Lead Acid (SLA) battery had died, so this light was screaming to get "fixed" and returned to service. I started by powering up a 3W HD Luxeon and positioning it in the reflector to get an idea of the focal point. The reflector is so deep that a lot of the light from the High Dome (HD) Luxeon didn't even hit the reflector. First clue - the spot was about three times brighter if I pointed the HD toward the reflector. So I dug in the parts cabinet and found a white 5 Watt Side Emitter (SE). Next was just a bit of eyeball measuring and dumb luck when I cut the heatsink post.
The distance (0.549 inch) was perfect for a very tightly focused beam from the Luxeon SE. The diameter (0.622) just fits through the reflector opening with a tight mechanical fit. I started with 5/8 bar stock (0.625) and just turned 0.003 off the diameter, and drilled two holes length wise for the power wires. A little Artic Silver thermal epoxy around the heatsink where it flares to 0.625 and pushed it in place from the back of the reflector.
Kick @ss tight beam that hurts your eyes if pointed at a white wall.
The beam measures 17,500 Lux at one meter when powered from 6 NiMh AA cells.
A piece of bubble wrap goes on top of the 6AA battery holder and then the door slid in place for a very light, bright spot light. Plenty of room in the battery compartment for many different batteries if you want more than the 60 - 90 minutes run time these 6 AA cells provide.
So this reflector seems to be a great match for Luxeon Side Emitter LEDs. Simple easy mod that resulted in a great little spot light that has really white light that can reach out into the night. The SE Luxeon in this reflector makes a perfect round spot with no hint of the dreaded black hole in the center. The center of the beam is the brightest part; no more 5W Black Holes.
This quick mod turned out to be the brightest Luxeon mod I've ever made. 17,500 Lux from a Side Emitter no less. The SE Luxeons always seemed like a misfit before, but not anymore. It just takes the right reflector to get the most out of them.
Here's another mod for the Chicago Electric Power Tools spot light (available at Harbor Freight $9.95 when on sale, $14.95 regular price).
The 6V 5 Amp Hour Sealed Lead Acid (SLA) battery had died, so this light was screaming to get "fixed" and returned to service. I started by powering up a 3W HD Luxeon and positioning it in the reflector to get an idea of the focal point. The reflector is so deep that a lot of the light from the High Dome (HD) Luxeon didn't even hit the reflector. First clue - the spot was about three times brighter if I pointed the HD toward the reflector. So I dug in the parts cabinet and found a white 5 Watt Side Emitter (SE). Next was just a bit of eyeball measuring and dumb luck when I cut the heatsink post.
The distance (0.549 inch) was perfect for a very tightly focused beam from the Luxeon SE. The diameter (0.622) just fits through the reflector opening with a tight mechanical fit. I started with 5/8 bar stock (0.625) and just turned 0.003 off the diameter, and drilled two holes length wise for the power wires. A little Artic Silver thermal epoxy around the heatsink where it flares to 0.625 and pushed it in place from the back of the reflector.
Kick @ss tight beam that hurts your eyes if pointed at a white wall.
The beam measures 17,500 Lux at one meter when powered from 6 NiMh AA cells.
A piece of bubble wrap goes on top of the 6AA battery holder and then the door slid in place for a very light, bright spot light. Plenty of room in the battery compartment for many different batteries if you want more than the 60 - 90 minutes run time these 6 AA cells provide.
So this reflector seems to be a great match for Luxeon Side Emitter LEDs. Simple easy mod that resulted in a great little spot light that has really white light that can reach out into the night. The SE Luxeon in this reflector makes a perfect round spot with no hint of the dreaded black hole in the center. The center of the beam is the brightest part; no more 5W Black Holes.
This quick mod turned out to be the brightest Luxeon mod I've ever made. 17,500 Lux from a Side Emitter no less. The SE Luxeons always seemed like a misfit before, but not anymore. It just takes the right reflector to get the most out of them.
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