<p><span style="font-size: medium;">Unprotected, high drain batteries only, protected cells won't work</span></p> <p> </p> <p><span style="font-size: medium;">The B35AM, FC-40 versions are with the OP reflector by default, other versions are with t
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It has a lanyard hole, good throw, decent runtime, easy to check battery state of charge, just hold the button to achieve desired light level. Certainly your delivery truck has some place to store this until needed. A belt holster would work but if around the neck, placing it in a shirt pocket would be more comfortable, taking pressure off the neck. Consider either a (easy on the eyes) dedomed 519A 5700K or the 4000K SST-20 but one could go for maximum throw with a W1 or W2. There are other terrific choices in emitters.
The amber lit switch does it for me, giving enough light just from the switch for fully night adapted eyes basic close in navigation, but one would think either of the white switches may be good. Do not be concerned with the lighted switch draining the battery. While it is easy to slightly unscrew the tailcap to open the circuit, if you are using it for work, you will need to recharge it from that use anyway.
Have fun and get what you want. Maybe experiment.