Ok, this looks good from ahsupply, but the heat warning worries me........
Here's the info from there site:
You can use this kit to convert a 1x15w fluorescent light strip to 2x13w. Includes: Two 13 watt thermally protected magnetic ballasts; two 2-pin GX23 sockets; wire for completing the connection of the ballasts to the power cord and switch in your light strip; wirenuts and screws needed for installation; and pop-in vent covers and base pads. Requires two 13W bulbs (not included).
IMPORTANT: If you choose to use your 2x13watt Bright Kit™ (Item #21301) to retrofit a regular light strip, you'll want to be sure to order our FREE Installation Tips (Item #21309), use the two pop-in end-vent covers and rear corner base pads included in your kit, and place your strip on top of a glass cover. This should remedy the heat problem you'd otherwise have with so much light built into such a small strip. Used this way, we've found that these small light strips will not get as warm as some larger strips such as a commonly available 2 x 30 watt aquarium strip - either on top or inside near the bulbs. NOTE, however, that you should not use a light strip retrofitted with two 13watt CF bulbs on top of a regular plastic tank cover. That could get so hot that your thermally protected ballasts might shut down - especially if the ambient temperature is high.
My hood is plastic. Should I avoid this fit?