Canadian journal of anaesthesia = Journal canadien d'anesthésie
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To determine luminance and light field characteristics and the effect of residual battery potential and luminance on light colour temperature in our used Macintosh #3 and #4 fibre-light (FLB) and bulb-light (BLB) laryngoscopes. ⋯ Fifteen percent of the BLB did not meet the minimum luminance for laryngoscopy of 100 cd x m(-2), 92% of the FLB did not meet that same standard.