Hpa majaw nga yang, n-gun kaba ai mercury pyengdin ni gaw, mercury nbung hpe shapraw ai hpe madung tawn nna nhtoi shapraw ai gas-pru ai pyengdin ni rai nga ai. Shanhte a bungli galaw ai ladat gaw, -voltage kaba ai wan n-gun gaw, mercury nbung hpe shadut nna, ultraviolet nhtoi hpe shapraw ya ai, dai nhtoi hpe lamp tube kata na phosphors ni hku nna, mu lu ai nhtoi de galai shai kau ya ai. Tsaban 20 lapran kaw nna, ndai hpaji masa gaw, laklai ai nhtoi htoi ai atsam hte n-gun atsam grai law hkra jai lang lu ai majaw, hpaga lam, hpaga lam, shinggan nhtoi htoi ai lam ni hta ahkyak ai shara hpe hkam la lu sai.
High-pressure mercury pyengdin ni a madung hpaji masa gaw, shanhte a nhtoi htoi tu ai atsam grai law ai hte asak galu ai lam rai nga ai. Moi na nhtoi htoi ai pyengdin ni hte shingdaw yu yang, watt mi hta 50-60 lumens lu ai majaw, n-gun lang ai lam hpe grai shayawm ya lu ai. Dai hta n-ga, mercury nbung gaw n-gun kaba ai npu kaw pru wa ai majaw, pyengdin n-gun n-gun kaba ai plasma langai mi byin pru wa nna, pyengdin a asak gaw, madung hku nna hkying hkum 10,000 jan rai mat ai. Ndai pyengdin ni gaw aten galu matut manoi galaw ra ai, lam ntsa nhtoi htoi ai, jakrung bungli galaw ai shara ni, ginsup pa ni zawn re ai bungli ni a matu htuk manu ai.
Spectral arawn alai hte seng nna, n-gun kaba ai-mercury pyengdin ni a nhtoi pru ai gaw madung hku nna blue-green rai nna, ultraviolet nhtoi loi mi sha nga ai. Shanhte a color rendering index (CRI) gaw, n law ai (40-60 daram) rai nna, lachyum gaw, shanhte gaw arai ni a nsam ni hpe n law htum shapraw lu ai. Raitim, ndai arawn alai gaw, nhtoi htoi tu ai raitim, nsam hkrak ai lam n law ai, lam hkawm ai nhtoi (sh) shinggan nhtoi htoi ai zawn re ai bungli ni hta shanhte hpe akyu jaw ai. Dai hta n-ga, high-pressure mercury pyengdin ni gaw, nhtoi hpe n-gun n rawng hkra shapraw lu na matu, n-gun kaba ai aten galu ra ai, n-gun kaba ai minit 4-8 laman, bai hpaw na matu pyengdin katsi wa na aten hpe la ra ai. Ndai hkra machyi ai lam gaw application nkau mi hta shanhte a galai shai lu ai atsam hpe pat shingdang ya ai.
Dai ni na aten na hpaji masa gaw, phosphor shingnip ni hte electrode hkrang shapraw ai lam ni hpe grau kaja hkra galaw ai hku nna, n-gun kaba ai-mercury pyengdin ni a bungli hpe grau kaja hkra galaw ya sai. Ga shadawn, rare earth phosphors ni hpe jat bang ai gaw, nsam hpe grau kaja hkra galaw ya nna, electronic ballast ni hpe lang ai gaw, n-gun hpe galai shai ai lam hpe grau kaja hkra galaw ya ai. Kade nna ai aten hta LED hpaji masa lawan ladan rawt jat wa ai raitim, high-pressure mercury pyengdin ni gaw, shanhte a kungkyang ai hpaji masa hte manu n law ai majaw, nkau mi hta galai shai n mai nga ai. Htawm hpang de, grup yin tara ni gaw mercury lang ai lam hpe pat shingdang ai lam ni hpe grau ngang kang hkra galaw wa ai hte maren, high-pressure mercury pyengdin ni hpe grup yin hpe grau shim lum ai kaga pyengdin ni hte loi loi hte galai shai kau mai ai. Raitim, shanhte a hpaji masa akyu ni gaw nhtoi htoi ai bungli masing ni a matu ahkyak ai madung manu hpe naw jaw ya nga ai.
