![Daystar](/Marken/normal/Daystar.jpg)
More than 40 years ago, the Daystar founder Del Woods began manufacturing narrow band H-alpha filters for solar observation. These filters are used by both amateurs and universities alike, and have even flown into space aboard the space shuttle.
In 2014, DayStar introduced a new H-alpha filter under the trading name QUARK. The QUARK revolutionised solar observation because it offers very high contrast at a reasonable price, and can be used with existing refractors.
The QUARK module is now also available for other wavelengths, and DayStar also offers it pre-installed into refractors.
![DayStar Quark Universal AC Power Supply](/Produktbilder/normal/53555_1/DayStar-Quark-Universal-AC-Power-Supply.jpg)
DayStar
Quark Universal AC Power Supply
$ 85.00
ready for shipping in 24
h
![DayStar 22.4 Amp hour battery pack for the Quark](/Produktbilder/normal/53554_1/DayStar-22-4-Amp-hour-battery-pack-for-the-Quark.jpg)
DayStar
22.4 Amp hour battery pack for the Quark
$ 182.00
ready for shipping in 24
h
![DayStar Quark USB Power Extension Cable](/Produktbilder/normal/53692_1/DayStar-Quark-USB-Power-Extension-Cable.jpg)
DayStar
Quark USB Power Extension Cable
$ 37.90
ready for shipping in 6-10
weeks