Large flashlights that use replaceable bulbs can be used as concentrators for solar cells. Mount two cells back-to-back with double-sided tape. Connect the plus lead of one cell to the negative lead of the second cell. Extend the remaining leads through the lamp opening. Use an adhesive to secure the cells inside the reflector. The flashlight case has plenty of room to install many kinds of light actuated circuits.

Page last modified on August 29, 2019, at 11:55 PM
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