LOL taking up a bit of indoor gardening then, Eliot?

Somehow I don't think this lamp is for ripening your tomatoes...

LMAO Tom, no!

Well standard SON lamps for general lighting can be used, I know people who use them. The spectral output of these is slightly different though, a bit more blue in it, better for promoting growth I believe! You usually switch to Metal Halide lamps for flowering though.

LOL these certainly aren't for ripening your tomatoes!

I just use a standard 70w son for the early growth in the greenhouse while it's chilly outside and then convert to mercs to provide the blue. I get quite a lot of tomatoes from the small greenhouse - easily 400.

'Tomatoes'?

if you are using Lamps for Horticulture Lighting you are best with THIS LAMP it contains Both a Sodium Arc Tube and Metal Halide Arctube which light up together see HERE, where white light is essential for Plant Growing and the Yellow for Vegitiation.

You can get other Lamps which are Just SON-T lamps whith enhanced Blues in the Spectrum such as the Sunmaster, Osram Planta, Philips SON AGRO, Sylvania Growlux and Iwasaki EYE Hortilux, etc, as Elliot mentioned you then need to sitch over to Metal Halide for Vegitation,

Have you guys seen a Side Silvered SON Lamp for Hoticulture Lighting I have a Artemis LUR400/Plant in my Collection.

Yes a Standard SON Lamp can also be used for Horticulture Lighting but withthe lack of Blues, but still work just as good. when out and about, especially in the summer, have a look around Street lights you will notice that weeds seem to grow quicker near street lights.

All the Best

Colin

Ah thanks Colin! Now I know why we get so many weeds on our drive! We've got a 250 SON right outside our house!

@Jackth01 - the red fruity veggy things that you eat. What were you thinking?

I think he means allegedly tomatoes from the small greenhouse....

Actually, I think I can guess what you were implying.