Happy with the purchase Overall 2 of the 3 bulbs in the pack were fine. One was defective (the 200w filament worked but the 100w filament didn't - I checked because there was a loose fragment of metal inside the bulb). I contacted the seller through Revain and they promptly refunded 1/3 of the price. I would still recommend this product, but it would be wise to try them all if there is a defect.
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