| Expand: [ Ha | Hb | Hc | Hd | He | Hf | Hg | Hh | Hi | Hj | Hk | Hl | Hm | Hn | Ho | Hp | Hq | Hr | Hs | Ht | Hu | Hv | Hw | Hx | Hy | Hz ] | |||||||
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| HQ9 Plus | HQ | Hq9plus |
| HQIAn HQI is a type of light source where the light is produced using a very high voltage arc through a gas. The 'bulb' consists of an outer glass sheild surrounding two voltage rails which attach to each end of a smaller bulb containing the gas and with one |