Thousand Oaks Optical
FOUR CHANNEL:Each heater output is controlled independently and has a full range of adjustment from 0-100%. This eliminates the problem of overheating or not reaching desired temperature regardless of heater size and combination... Learn MoreModel#: DDHC
Manufacturer of SAFE solar filters for over 30 years. Used by NASA aboard the Space Shuttle. Other professional users include: ABC, BBC CBS, NBC, CNN, NOVA, The Discovery Channel, National Geographic and most major universities and observatories throughout the world. We use the latest technology for manufacturing and developing new products. Tens of thousands of our solar filters and millions of our eclipse viewers are in use world wide.