CHRISTMAS LED STRING TESTER

Too many times, the devices you bought for the old kind (incandescent) of Christmas lights do not work with the new LED Christmas lights. But there are tricks you can use to get these devices to work with many kinds of strings of the new lights.

This tester can be used to find out how to get the desired results with LEDs:

DANGER

DO NOT BUY OR USE THESE BULBS

dangerous bulb

These imported candelabra-base LED bulbs have enlarged metal ferrules (indicated in diagram) that are connected to the screw shell. An unsuspecting person touching or changing this bulb can contact this live metal part.

  ELECTRICAL SHOCK HAZARD!  

DO NOT USE THIS KIND OF BULB in Christmas light strings or in any socket where the ferrule is exposed. An unpolarized plug on the light string, Christmas lights connected in series, or an open neutral wire in a light fixture can leave the ferrule connected to the live side of the power line.


Links:


Links:

Fun with Christmas Lights

Christmas Light Devices

Make Christmas Lights Shimmer

Sequence your Christmas Lights

Light Bulbs, Spectra, and Vision