Odd I thought you said a resistor was out of the question.
A resistor in Parallel will not blow the lamp. In fact it will act as a potential divider and reduce your minimum an maximum voltage, it would be worth trying.
Odd I thought you said a resistor was out of the question.
A resistor in Parallel will not blow the lamp. In fact it will act as a potential divider and reduce your minimum an maximum voltage, it would be worth trying.