In article ,
(Mark Zenier) wrote:

In article ,
Jennie wrote:
what is the bulb number in the fr200? If it is the 1157, a common bulb, the
bulb at aerostich has a LED replacement...


http://www.aerostich.com/riderwearhouse.store


search for 2542 for led replacements for 1157 bulbs....15 Ma vs. 590 Ma for
regular bulbs


HUH? An 1157 is a 12 volt automotive turn signal lamp. It's an S8
envelope and is over an inch across and runs 7 watts or so.

The lamp in a FR200 is a 5 mm long grain of wheat incandescent with
wire leads. There is some sort of circuit to drive it, because the lamp
is running on about 2.5 volts, with about 2 volts difference between
the the + side of the AA batteries. (The lamp runs on either/both the
AA cells and the rechargeable NiMH pack).

BTW, there's a spare lamp in there behind the pop off lamp holder, in a
little recess in the radio case.

But that 7 watts will really light things up.

Someone was talking about using LED's for incandescent bulbs. If you
want to do this the forward drop on them is typically around 1.3 to 1.8
volts. You just need a series resistor to limit the current usually
around 12 to 18 mA. Digi-key will list them with there typical voltage
and current ratings so you can find one for your situation.

--
Telamon
Ventura, California