The OP was talking about a current limiting resistor for an LED panel light.
A quarter watt resistor is overkill. Understand what is being discussed.
Google RETMA values if you must.

Jim

--
"It is the mark of an educated mind to be able to entertain a thought
without accepting it."
--Aristotle



500 is not an uncommon value for power resistors.
Huntington Electric lists it as a standard value:
http://www.heiresistors.com/axialresistor.htm

Curt