These are essentially the same as the standard SON lamps above but are TUBULAR and have internal ignitor.
This is very important because they will damage your control gear and kill the lamp if you get it wrong.
Look for a symbol on the lamp that looks like a triangle if it has an I in the triangle /I\ then the lamp has an internal ignitor if it has an E /E\ then you need the standard lamp above.
Also known as vialox, nav, SHP. lucalox.
If you're not sure please call we can usually help.
For best prices select box discount rate and then wattage from the lower drop down box