Return to the Growing under Lights Forum | Post a Follow-Up

 o
reflector material...

Posted by salvialvr Texas Z8 (My Page) on
Wed, Aug 2, 06 at 11:50

I am preparing to build a light hood for my orchidarium and I need advice about reflector material. Which reflect best white or Mylar? I can use either but once the hood is completed it'll be a pain to chang out the reflector so I want to use the best the first time. Any help is appreciated.

Thanks, Adam


Follow-Up Postings:

 o
RE: reflector material...

Once you have the reflector complete mylar would be a pain to have to clean. As soon as a surface gets dirty/dusty its reflectivity drops dramatically and mylar doesn't enjoy being cleaned as it will crinkle and tear. I'd say paint it flat white and if you want to add mylar later down the line then you could simply install it over the white paint.


 o
RE: reflector material...

Flat white is a good choice, since it's quite reflective and also has a nice appearance. A reflective fabric called Foylon is similar to mylar but tougher and easy to wash. I made up a room divider lined with it and it works great.

Any material, whether mylar, foylon, or something else, should be at least a couple of feet from an HID light, and a foot from a fluorescent. If you're building a reflector that will be close to a bulb, make or buy one of metal. Specular aluminum is what light manufacturers use.


 o
RE: reflector material...

White is perfect for something like a light hood. Remember you are just trying to bounce all the light in the general direction of the tank, not focus it into a spot. Use a suitably shaped reflective material if you need to get very directed light from a lamp mounted far from the plants, for example to achieve high penetration on tall plants.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Growing under Lights Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here