My Rides

Thursday, September 1, 2011

Bike Light - The Parts


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This bike light has turned into it's own little hobby.  In addition to the high output bike light, I also have a lower output helmet light in the works, using:
  • LED:  Single Cree XP-G Q4 - warm white (3000K), on star board (ledupply.com, $6.25)
  • Driver:  5-mode, 1000mA "3 x 7135" (IC) based, 3-4.5V input (dealextreme.com, $3.19)
  • Lens:  Various 20mm TIR lenses (ledsupply.com, $1.25 ea)
I pick up my Lux-RC integrated light/driver from the post-office in the morning.  Arriving later this week are:
    • Battery Holders:  (2) 2 x 18650 Li-Ion battery holders (digikey.com, $3.80 ea)
    • Batteries:  4 x 18650 Tenergy protected Li-Ion cells (2 cells, in series, for bike light, 1 or 2 cells, in parallel, for helmet light), with 2-channel charger (amazon.com, $46.99)
    Also pictured:
    • Aluminum for housings, prototypes:  2" x 2" x 12" Aluminum Square Bar (speedymetals.com, $21.73)
    • Heatsink:  The Northbridge cooler from an old PC