If you're thinking this looks very similar - even suspiciously similar to another lamp on this website, you're either very observant, paranoid, or you read this website too much!  You'd be right though.  This is the rich brother to Tesco's rebadged one.  Technically both lamps are identical - just that this one got a better deal where ballast components are concerned, being of slightly higher quality than the rebadged version.  This is apparent in two ways; firstly the vastly increased lifetime - this lamp stating an 8'000 hour lifespan, rather than the Tesco version's 3'000 hours; secondly is that the power factor of this lamp is slightly superior.  I would be surprised however if there was any difference in the glasswork.

This lifetime estimate not mean too much though.  In my experience, the modern GE products such as this seem to have somewhat erratic life spans, either lasting only a few hundred hours, or going on for 10'000 plus.  This is clearly a quality control issue on the part of GE - one which I would hope that they are aiming to fix.  Cheap lamps or not - if they keep failing prematurely, the customer will start looking elsewhere.

Somewhat unusually, this lamp is not badged as being equivalent to a common rating of lamp - instead a more accurate claim of 55W incandescent equivalence.  In most cases I would have expected the usual "60W" claim to have appeared, expecting people to just grumble a bit when the lamp is slightly dimmer than expected.  Nice to see some slightly more realistic claims for a change.