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Lloyd E. Sponenburgh[_3_]

fired this volley in
:

Replaced 460 watt halide vapour bulbs with 160 watt LEDs -
and it is brighter now than with the ol;d lights - and instant on - no
buzzing - about $460 per unit

That's going to be an iffy payback. I have a number of those
metal/halide vapor lights in my high overhead in the barn... they've been
in almost daily service for me for over 18 years... never a replacement
ballast or bulb; And I bought them USED from a parking garage demolition
project in 1995. No telling how long they'd been in service there.

That being the case, they last at LEAST as long as the LEDs claim to, but
mine are only about $30 per lamp. I figger it'll take about two years to
save $430 in power per bulb on a difference of only 300 watts. And
that's if the LED lamps really hold up long enough to pay back. The
vapor lamps are proven, LONG-lasting technology.

Lloyd