what do u mean? Well i ordered a powersun zoo med one but a mega ray has come through. Will send it back if wrong

That'll be fine, all I needed to know was it's a Mercury Vapour lamp, those lamps are reflectors (they have a silvered back) so the clamp lamp is simply acting as a protective shade, it's not actually reflecting any light.

Just fit the bulb and it'll be OK.

Out of interest what wattage is the bulb and what size Clamp Lamp did you get?

8.5 inch with a 100 w bulb.

A megaray has come through with a powersun bulb(100w), clamp lamp and thermometer coming 2moro.

Which bulb should i use?

Eh? You got a MegaRay and a Powersun?

yeh. lol

I must have ordered one by mistake. Which one should i use?

Personally I'd use the MegaRay and return the Powersun if you can.

ok thank you!

sorry im not sure u answered this but shall i put tin foil around the lamp to reflect the light

No you don't need to, as I said the bulb itself is a reflector!

ok cheers